# TelcoBridges > TelcoBridges builds telecom software for service providers and enterprises. Our flagship products are ProSBC (a software session border controller for securing SIP networks and enabling Microsoft Teams Direct Routing) and Tmedia (TDM-to-IP media gateways for connecting legacy PSTN equipment to modern VoIP infrastructure). Our Tsig signaling gateways handle SS7/SIGTRAN-to-SIP conversion. Our Ttrans transcoding gateways handle hardware-accelerated IP-to-IP codec conversion at scale. Voice Intelligence is our SaaS platform for voice network monitoring and AI-ready data. Important notes: - ProSBC runs on commodity hardware, in cloud, or as a managed service. Typical buyers are MSPs, ISPs, contact centers, and enterprises. - Tmedia gateways are our hardware-based product line for converting between TDM (T1/E1, ISDN, PRI) and SIP/VoIP, with 99.999% availability. - Tsig signaling gateways handle SS7 and SIGTRAN-to-SIP conversion for legacy signaling networks. - Ttrans transcoding gateways provide hardware-accelerated IP-to-IP transcoding for high-volume codec conversion (200 to 54,000+ channels). - Voice Intelligence is our SaaS monitoring platform with two components: Trace (end-to-end call correlation with full SIP signaling depth) and Nodes (per-node health, capacity, and aggregate call trends across the fleet). - We are not affiliated with AudioCodes, Ribbon, Oracle/ACME, or Cisco. We are a competing alternative. - ProSBC Lab is available for free for evaluation, lab use, and small deployments. (FreeSBC is being phased out — existing licenses remain active until expiration but cannot be renewed; ProSBC Lab is the supported successor, downloadable from the Customer Dashboard.) - TelcoBridges offers an MCP (Model Context Protocol) server for AI-assisted device configuration and troubleshooting of ProSBC and Tmedia devices. ## Products ### Session Border Controllers (ProSBC) - [ProSBC overview](https://telcobridges.com/sbc/): Secure, cost-effective Session Border Controller software for service providers and carriers. Carrier-grade SBC ensuring scalability and reliability for unique business needs. - [ProSBC product page](https://telcobridges.com/sbc/products/prosbc/): TelcoBridges' high-performance Session Border Controller with advanced security, scalability, and flexibility. Reliable and cost-effective SBC technology. - [ProSBC Managed Service](https://telcobridges.com/sbc/products/managed-service/): Fully managed SBC solutions with carrier-grade security and expert support — scalable, reliable, secure session border controller services. - [ProSBC Hosted & Managed SBC](https://telcobridges.com/sbc/products/hosted-and-managed/): Fully hosted SBC-as-a-Service where TelcoBridges owns both hosting (AWS) and operations — zero infrastructure on the customer side, with DDoS protection, fraud prevention, STIR/SHAKEN, and 24/7 Level-3 support. - [ProSBC for Microsoft Teams](https://telcobridges.com/sbc/products/microsoft-teams/): Secure and seamless voice integration with Microsoft Teams Direct Routing. Optimize call routing, security, and performance for Teams environments. - [SBC Monitoring as a Service](https://telcobridges.com/sbc/products/monitoring-service/): Customizable cloud-based monitoring solution for ProSBC infrastructure — real-time visibility, expert insights, proactive support. - [Media Transcoding SBC](https://telcobridges.com/sbc/products/transcoding-prosbc/): External hardware media transcoding unit for ProSBC. Scalable, efficient, high-performance transcoding for telecom infrastructure. - [ProSBC Lab](https://telcobridges.com/sbc/products/freesbc-prosbclab/): Free, supported SBC environment for testing and validation. The supported successor to FreeSBC (which is being phased out and cannot be renewed). Download via the Customer Dashboard. ### Media Gateways (Tmedia) - [Tmedia VoIP Media Gateways overview](https://telcobridges.com/media-gateways/): The Tmedia family is widely recognized as highly reliable and stable, with over five-nines (99.999%) availability. - [Tmedia gateway product family](https://telcobridges.com/media-gateways/products/tmedia-gateways/): High-performance VoIP Media Gateways — highly scalable and reliable solutions with 99.999% availability for Carriers and Operators. - [TMG800](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg800/): Cost-effective carrier-grade VoIP gateway. 1 to 16 T1/E1 ports, 512 VoIP channels, high availability for service providers. - [TMG3200](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg3200/): High-density 1U VoIP gateway supporting 16 to 64 T1/E1, DS3, or STM-1 interfaces — for high-capacity carrier-grade performance. - [TMG7800](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg7800/): Most scalable carrier-grade VoIP gateway. Up to 32,768 channels per cluster and massive TDM density for large networks. - [Tmedia for Metaswitch (now Alianza)](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmedia-metaswitch/): VoIP gateway portfolio specifically configured for Carriers operating on Metaswitch Networks CFS/AGC/MGC. - [Metaswitch Gateway Replacement](https://telcobridges.com/metaswitch-gateway-replacement/): Tmedia as a direct replacement for Metaswitch UMG products — CFS certified, Alianza/netsapiens/BroadSoft/Ribbon approved, no end-of-life policy. - [Tmedia Monitoring as a Service](https://telcobridges.com/media-gateways/products/tmedia-gateways/monitoring-service-tmedia/): Powerful, fully managed monitoring solution designed specifically for TelcoBridges' media gateways. - [Ttrans Transcoding Gateways](https://telcobridges.com/media-gateways/products/transcoding-gateways/): Hardware-accelerated IP-to-IP transcoding. Scale from 200 to 54,000+ channels with support for a vast range of codecs. - [TB Analytics](https://telcobridges.com/tb-analytics-datasheet/): Diagnostic and traffic monitoring tool suite included with all Tmedia, Tsig, Ttrans, and Tdev gateways — call tracing, ladder diagrams, test call simulation, SigTrace, and targeted voice recording. ### Signaling Gateways (Tsig) - [Tsig Signaling Gateways overview](https://telcobridges.com/media-gateways/products/tsig-signaling-gateways/): Convert between SS7 and SIGTRAN protocols. Highly scalable 1U solutions with up to 64 SS7 links and 99.999% availability. - [TSG800](https://telcobridges.com/media-gateways/products/tsig-signaling-gateways/tsg800/): Cost-effective 1U SS7/SIGTRAN signaling gateway. Scalable from 1 to 16 T1/E1 ports with full protocol support and carrier-grade redundancy. - [TSG3200](https://telcobridges.com/media-gateways/products/tsig-signaling-gateways/tsg3200/): High-performance 1U SS7/SIGTRAN signaling gateway supporting 16 to 64 T1/E1, DS3, or STM-1 ports. Ideal for end-of-life gateway replacement. ### Voice Intelligence (SaaS Monitoring) - [Voice Intelligence](https://telcobridges.com/voice-intelligence/): SaaS platform for voice network monitoring and AI-ready data — cross-fleet call correlation, anomaly and fraud detection, MCP integration. Fixed monthly billing, 48-hour deployment, no multi-year contracts. - [Voice Intelligence Trace](https://telcobridges.com/voice-intelligence/trace/): Deep call-inspection component — automatically correlates every call leg across the fleet into a unified timeline with full SIP signaling depth, ladder diagrams, and built-in anomaly detection. - [Voice Intelligence Nodes](https://telcobridges.com/voice-intelligence/nodes/): Fleet-wide monitoring — live up/down status, CPU/RAM/disk telemetry, concurrent sessions, CPS per node, HA pair states, per-NAP visibility, and threshold alerts to email/Slack/Teams/Discord. - [Preparing Your Voice Data for AI](https://telcobridges.com/voice-intelligence/ai-voice-data/): How Voice Intelligence normalizes, correlates, and tenant-isolates raw voice data to make it AI-ready, with MCP integration for connecting any LLM to correlated voice data. ## Solutions ### Session Border Controller Solutions - [Session Border Controller Solutions overview](https://telcobridges.com/sbc/solutions/): Cutting-edge SBC solutions for telecom networks — security, scalability, and performance. - [Cloud-Native SBC](https://telcobridges.com/sbc/solutions/cloud-native-session-border-controller/): Scalable, secure cloud-native SBC for cloud-deployed voice infrastructure. - [Virtual SBC](https://telcobridges.com/sbc/solutions/virtualized-session-border-controller/): Virtualized SBC for flexible deployment in virtualized environments. - [Enterprise SBC](https://telcobridges.com/sbc/solutions/enterprise/): SBC for enterprise networks — secure VoIP, SIP interoperability, branch and data-center scaling. - [Hosted & Managed SBC Solution](https://telcobridges.com/sbc/solutions/hosted-and-managed-session-border-controller/): SBC capabilities without dedicated infrastructure or telecom expertise — security, AWS infrastructure, carrier-grade capacity, monitoring, and 24/7 management. - [SBC API Integration](https://telcobridges.com/sbc/solutions/sbc-api/): Script-driven SBC API platform for fraud detection, STIR/SHAKEN, routing, billing, and analytics integration. - [Telecom Fraud Detection](https://telcobridges.com/sbc/solutions/fraud-detection/): Real-time fraud detection powered by the Somos DNO database. Blocks spoofed traffic, ensures FCC compliance, no setup required. - [CPaaS and SBC](https://telcobridges.com/sbc/solutions/cpaas-sbcs/): How integrating CPaaS and SBC reduces costs, consolidates voice traffic, and lets providers choose preferred carriers. - [STIR/SHAKEN](https://telcobridges.com/sbc/solutions/stir-shaken/): Caller ID authentication to combat illegal robocalls and meet FCC requirements. ### Media Gateway Solutions - [Media Gateway Solutions overview](https://telcobridges.com/media-gateways/solutions/): Simplify complex voice environments with TelcoBridges media gateway solutions. Modernize legacy networks, achieve TDM-to-IP migration, and ensure carrier-grade reliability. - [Tmedia APIs](https://telcobridges.com/media-gateways/solutions/tmedia-apis-integration-made-easy/): REST API integration and a powerful scripting engine for custom routing, fraud detection, and STIR/SHAKEN compliance. - [Lawful Intercept](https://telcobridges.com/media-gateways/solutions/lawful-intercept/): Cost-effectively meet government requirements with built-in ETSI 201 671 compliance for seamless signaling and media monitoring. - [Modernize GR-303 Networks](https://telcobridges.com/media-gateways/solutions/modernize-gr-303-networks/): Modernize GR-303 infrastructure with TelcoBridges and Alianza. Replace legacy Class 5 switches and Metaswitch UMGs while preserving existing access lines. - [NG911 Compliance Solutions](https://telcobridges.com/media-gateways/solutions/ng911/): Fastest path for legacy TDM switches to achieve FCC NG911 compliance without replacing existing equipment — Tmedia gateways convert TDM/SS7/CAMA signaling into SIP for NG911 ESInet delivery. - [Signaling Solutions](https://telcobridges.com/media-gateways/solutions/signaling/): Reliable SS7 and SIGTRAN signaling solutions. Scale from 1 to 64 links in a single unit with built-in protocols and 99.999% availability. - [Decentralized Gateways](https://telcobridges.com/media-gateways/solutions/decentralized-network/): Cost-effective IP transition using decentralized gateway deployment for site flexibility. - [TDM to SIP Network Transformation](https://telcobridges.com/media-gateways/solutions/network-transformation/): Strategy for transforming legacy service provider networks without disrupting existing customers (Metaswitch context). - [NECA Compliance with Cloud-based Services](https://telcobridges.com/media-gateways/solutions/neca-compliance-cloud-based-services/): Hybrid cloud architecture meeting NECA requirements and protecting NECA settlement revenue. - [SS7 to SIGTRAN Migration](https://telcobridges.com/media-gateways/solutions/signaling/migrating-ss7-sigtran/): Four typical architectures for migrating from SS7 to SIGTRAN, with use cases and benefits. ## AI Integration - [TelcoBridges MCP Server](https://telcobridges.com/mcp/): Model Context Protocol server for AI-assisted configuration and troubleshooting of ProSBC and Tmedia devices. Build REST API calls, follow step-by-step runbooks, and access the full troubleshooting knowledge base through any MCP-compatible AI client. ## SBC Use Cases - [SBC Use Cases overview](https://telcobridges.com/sbc/use-cases/): Real-world applications of SBCs across telecom networks — 15 deployment scenarios with diagrams and customer case studies. - [Access SBC](https://telcobridges.com/sbc/use-cases/access-sbc/): How an Access SBC secures user access to hosted voice applications — NAT traversal, SIP registration forwarding, edge security. - [Cloud Communications Access Security](https://telcobridges.com/sbc/use-cases/cloud-comms-access-security/): How an SBC secures remote users accessing UCaaS and SaaS voice platforms — TLS/SRTP encryption, NAT traversal, encryption offload. - [Cloud Communications Trunking](https://telcobridges.com/sbc/use-cases/cloud-comms-trunking/): How cloud voice platforms connect to multiple carriers through an SBC — SIP normalization, multi-carrier routing, BYOC strategies. - [CPaaS Enablement](https://telcobridges.com/sbc/use-cases/cpaas-enablement/): How developers use a cloud-native SBC to connect their own carrier relationships to a communications platform, with media bypass. - [Enterprise SIP Trunking](https://telcobridges.com/sbc/use-cases/enterprise-sip-trunking/): How an SBC connects a single phone system to multiple carrier trunks — normalization, intelligent routing, failover. - [Intelligent Edge](https://telcobridges.com/sbc/use-cases/intelligent-edge/): Deployment model that pushes SBC routing, traffic management, and filtering to branch offices and customer premises. - [Peering SBC](https://telcobridges.com/sbc/use-cases/peering/): How SBCs enable carrier-to-carrier voice network interconnection — least-cost routing, SIP mediation, CDR generation, topology hiding. - [Real-Time Fraud Protection](https://telcobridges.com/sbc/use-cases/real-time-fraud-protection/): How ProSBC integrates with fraud-scoring services to evaluate call risk during setup before connections are established. - [SBC Redundancy](https://telcobridges.com/sbc/use-cases/sbc-redundancy/): SBC redundancy architecture with backup routes across softswitch, SBC, and trunk providers, including MOS-based rerouting. - [STIR/SHAKEN Use Case](https://telcobridges.com/sbc/use-cases/stir-shaken/): How the SBC serves as the natural STIR/SHAKEN enforcement point for signing and verifying calls. - [TDM to SIP Migration](https://telcobridges.com/sbc/use-cases/tdm-to-sip-migration/): How an SBC bridges legacy TDM switches and cloud-based SIP infrastructure during phased migration. - [TDoS Protection](https://telcobridges.com/sbc/use-cases/tdos-protection/): How an SBC defends against telephony denial-of-service (TDoS) attacks — call floods that overwhelm business agents. ## Learning ### Pillar guides - [Session Border Controller — complete guide](https://telcobridges.com/learning/session-border-controller/): Authoritative guide to SBC architecture, security, traffic normalization, and the software-vs-hardware tradeoffs. - [SIP Trunking — complete guide](https://telcobridges.com/learning/sip-trunking/): SIP trunking architecture, SBC integration, and security guide for ISPs and MSPs. - [VoIP Security & Fraud Prevention — complete guide](https://telcobridges.com/learning/voip-security/): Service provider's guide to VoIP security — DDoS protection, toll fraud, STIR/SHAKEN compliance, SBC at the network edge. - [Learning Center index](https://telcobridges.com/learning/): Full TelcoBridges learning library — practical guides on architecture, protocols, and deployment decisions. ### Session Border Controller articles - [Microsoft Teams Direct Routing Guide](https://telcobridges.com/learning/session-border-controller/what-is-teams-direct-routing/): How Teams Direct Routing works, what an SBC must do, and how to choose the right one. - [Become a Microsoft Teams Direct Routing Provider](https://telcobridges.com/learning/session-border-controller/microsoft-teams-direct-routing-provider/): Provider-facing guide to the SBC requirements for offering Teams Direct Routing as a service — multi-tenancy, tenant onboarding, delivery models. - [How to Offer Teams Direct Routing as a Managed Service](https://telcobridges.com/learning/session-border-controller/teams-direct-routing-managed-service/): MSP playbook for building a Teams Direct Routing managed voice service — pricing models, service stack, STIR/SHAKEN ownership, 90-day launch plan. - [Operator Connect for Microsoft Teams](https://telcobridges.com/learning/session-border-controller/microsoft-teams-operator-connect/): What Operator Connect is, how it works, decision criteria vs Direct Routing, and hybrid deployments where both coexist. - [Cloud Communications and the SBC](https://telcobridges.com/learning/session-border-controller/sbc-cloud-communications/): Why every cloud voice deployment needs a carrier-grade SBC. - [SBC for MSPs](https://telcobridges.com/learning/session-border-controller/sbc-for-msps/): How MSPs evaluate, deploy, and manage SBCs for multi-client voice — Teams DR, multi-tenant isolation, transparent pricing, managed SBC options. - [Multi-Tenant SBC for Microsoft Teams Direct Routing](https://telcobridges.com/learning/session-border-controller/multi-tenant-sbc-teams-direct-routing/): MSP guide to multi-tenant architecture, NAP isolation, wildcard TLS, and pricing for serving every client's Teams Direct Routing from one SBC. - [BYOC Explained: Bring Your Own Carrier](https://telcobridges.com/learning/session-border-controller/byoc-bring-your-own-carrier/): How Bring Your Own Carrier works for Teams Direct Routing, contact centers, and CPaaS — SBC architecture, carrier selection, and cost control. - [Contact Center SBC Guide](https://telcobridges.com/learning/session-border-controller/sbc-for-contact-centers/): How SBCs handle security, scale, and interoperability for contact center voice infrastructure. - [FreePBX SBC Integration](https://telcobridges.com/learning/session-border-controller/freepbx-sbc-integration/): How to put a session border controller in front of FreePBX for security, NAT traversal, and SIP trunk management. - [High Availability for VoIP: Failover Strategies](https://telcobridges.com/learning/session-border-controller/high-availability-for-voip-failover-strategies/): SBC failover architectures — 1+1 HA, geographic redundancy, and strategies for maintaining voice uptime. - [How to Choose an SBC: Buyer's Guide](https://telcobridges.com/learning/session-border-controller/how-to-choose-an-sbc-buyers-guide/): Six-step evaluation framework for voice network decision-makers selecting a session border controller. - [Jitter in VoIP](https://telcobridges.com/learning/session-border-controller/voip-jitter/): What jitter is, how it degrades call quality, and how SBC jitter buffers compensate for packet timing variation. - [Mean Opinion Score (MOS) and Voice Quality](https://telcobridges.com/learning/session-border-controller/mos-and-voice-quality/): How MOS scoring works and how the SBC maintains voice quality through codec selection, jitter buffering, and QoS enforcement. - [Migrating from Sonus SBC to ProSBC](https://telcobridges.com/learning/session-border-controller/sonus-to-prosbc-migration/): Why voice engineers are moving off legacy Sonus infrastructure and how to plan the migration to ProSBC. - [Moving Off AudioCodes Mediant](https://telcobridges.com/learning/session-border-controller/audiocodes-mediant-migration/): Migration guide for service providers replacing AudioCodes Mediant SBCs with ProSBC. - [Operator Connect vs Teams Direct Routing](https://telcobridges.com/learning/session-border-controller/operator-connect-vs-teams-direct-routing/): Which Microsoft Teams voice path fits your strategy — comparing Operator Connect and Direct Routing architectures, control, and costs. - [SBC as an AI Voice Gateway](https://telcobridges.com/learning/session-border-controller/sbc-ai-voice-gateway/): Architecture, routing, and security for connecting voice AI agents to the PSTN through a session border controller. - [SBC for ISPs](https://telcobridges.com/learning/session-border-controller/sbc-for-isps/): How ILECs, CLECs, and regional VoIP providers use SBCs for SIP trunking, regulatory compliance, and interconnect security. - [Self-Hosted SBC for VoIP Providers](https://telcobridges.com/learning/session-border-controller/sbc-for-voip-providers-self-hosted/): Practitioner's guide to running your own voice edge — hardware, deployment, operations, and when managed makes more sense. - [SBC for MVNOs](https://telcobridges.com/learning/session-border-controller/sbc-for-mvnos/): How MVNOs use SBCs for AMR transcoding, IMS interconnect, and multi-carrier termination. - [SNMP for SBC and VoIP Monitoring](https://telcobridges.com/learning/session-border-controller/snmp-monitoring/): SNMP ports, MIBs, and operational practice for monitoring SBCs and VoIP infrastructure. - [Software SBC Benefits](https://telcobridges.com/learning/session-border-controller/sbc-software-explained/): What a software SBC is, how it differs from a hardware appliance, deployment options, and when each form factor is right. - [Softphones and the SBC](https://telcobridges.com/learning/session-border-controller/softphone-and-the-sbc/): How SBCs handle registration, NAT traversal, and secure media for remote softphone users. - [Teams Direct Routing Troubleshooting](https://telcobridges.com/learning/session-border-controller/teams-direct-routing-troubleshooting/): Diagnosing SIP OPTIONS failures, TLS errors, audio problems, and domain deactivation in Teams Direct Routing deployments. - [The True Cost of Managing Your Own SBC](https://telcobridges.com/learning/session-border-controller/true-cost-managing-your-own-sbc/): Total cost of ownership analysis for self-managed SBCs — hardware, staffing, licensing, and hidden operational costs. - [VoIP and AI: Voice AI Agents Through SBCs](https://telcobridges.com/learning/session-border-controller/voip-ai-voice-agents-sbc/): How voice AI agents connect to real phone networks through SBCs — architecture, protocols, and security considerations. - [VoIP Gateway: TDM-to-IP Conversion](https://telcobridges.com/learning/session-border-controller/voip-gateway/): How TDM-to-IP conversion works in VoIP gateways and where the SBC fits in the architecture. - [VoIP Packet Loss](https://telcobridges.com/learning/session-border-controller/voip-packet-loss/): How packet loss affects call quality and how the SBC mitigates it through buffering, codec selection, and path management. - [What to Look for in a Managed SBC Provider](https://telcobridges.com/learning/session-border-controller/what-to-look-for-in-a-managed-sbc-provider/): Buyer's evaluation framework for selecting a managed SBC service — SLAs, security, multi-tenancy, and pricing models. ### SIP Trunking articles - [SIP Header Manipulation with an SBC](https://telcobridges.com/learning/sip-trunking/sip-header-manipulation/): How SBCs use header manipulation to fix interop issues between carriers, PBXs, and UCaaS platforms. - [What Is a SIP Proxy?](https://telcobridges.com/learning/sip-trunking/what-is-a-sip-proxy/): SIP proxy architecture, B2BUA vs proxy, and when each is appropriate. - [Fax over IP (FoIP) and T.38](https://telcobridges.com/learning/sip-trunking/fax-over-ip-t38/): How FoIP and T.38 relay work, and how to configure your SBC for reliable fax transmission. - [Avaya SBC Migration](https://telcobridges.com/learning/sip-trunking/avaya-sbc-migration-replacement/): Replacing the Avaya SBCE without disrupting voice — migration planning, SIP trunk cutover, and feature parity. - [Bandwidth.com SBC Integration](https://telcobridges.com/learning/sip-trunking/bandwidth-sbc-integration/): How to integrate an SBC with Bandwidth.com SIP trunking — registration, routing, and STIR/SHAKEN configuration. - [E.164 Phone Number Format](https://telcobridges.com/learning/sip-trunking/e164-phone-number-format/): How SBCs normalize phone numbers across international dialing plans using the E.164 standard. - [Elastic SIP Trunking Explained](https://telcobridges.com/learning/sip-trunking/elastic-sip-trunking-explained/): What elastic SIP trunking is, how it differs from fixed-channel trunks, per-minute pricing, and how an SBC governs elastic traffic. - [FreeSWITCH + ProSBC SIP Trunking Configuration](https://telcobridges.com/learning/sip-trunking/freeswitch-prosbc-sip-trunking-configuration/): Step-by-step guide to connecting FreeSWITCH with ProSBC for production SIP trunking. - [FreeSWITCH vs Asterisk](https://telcobridges.com/learning/sip-trunking/freeswitch-vs-asterisk/): Comparing FreeSWITCH and Asterisk — architecture, scalability, use cases, and which fits your deployment. - [FusionPBX with an SBC](https://telcobridges.com/learning/sip-trunking/fusionpbx-sbc-setup-best-practices/): Setup and best practices for deploying FusionPBX behind an SBC for security and SIP trunk management. - [G.711 vs G.729: VoIP Codec Comparison](https://telcobridges.com/learning/sip-trunking/g711-vs-g729/): Comparing G.711 and G.729 codecs — bandwidth, quality, transcoding, and when to use each in voice networks. - [How to Read a SIP Trace](https://telcobridges.com/learning/sip-trunking/how-to-read-a-sip-trace/): Practical guide to reading SIP traces for troubleshooting — INVITE flows, response codes, SDP negotiation, and common failure patterns. - [IMS Application Server](https://telcobridges.com/learning/sip-trunking/ims-application-server/): Where service logic lives in the IMS core — application server architecture, SIP interfaces, and the SBC's role at the network edge. - [International SIP Trunking](https://telcobridges.com/learning/sip-trunking/international-sip-trunking/): How international SIP trunking connects voice platforms to the PSTN across multiple countries — global coverage, compliance, multi-vendor routing, and security. - [Kamailio vs OpenSIPS vs FreeSWITCH](https://telcobridges.com/learning/sip-trunking/kamailio-vs-opensips-vs-freeswitch/): Comparing three open-source SIP platforms — architecture, scalability, and choosing the right one for your use case. - [Low-Cost SIP Trunk Providers](https://telcobridges.com/learning/sip-trunking/low-cost-sip-trunk-providers/): What drives SIP trunk cost, the hidden trade-offs behind low rates, and how to connect multiple carriers behind an SBC for least-cost routing. - [Neutral Tandem and Wholesale Voice Interconnect](https://telcobridges.com/learning/sip-trunking/neutral-tandem-and-wholesale-voice-interconnect/): Voice engineer's guide to wholesale voice interconnect — tandem switching, SIP peering, and SBC integration. - [Number Porting for ISPs and Carriers](https://telcobridges.com/learning/sip-trunking/number-porting-isps-carriers/): What ISPs and carriers need to know about number portability — LNP, porting processes, and SBC routing considerations. - [RCS vs SMS](https://telcobridges.com/learning/sip-trunking/rcs-vs-sms/): How RCS replaces SMS on the IMS network — architecture, carrier adoption, and the SBC's role at the messaging border. - [Replacing Your Hardware SBC with Software](https://telcobridges.com/learning/sip-trunking/replacing-hardware-sbc-with-software/): Practical migration guide for moving from hardware SBCs to software — planning, deployment, and cost savings. - [SBC AMR to G.711 Transcoding](https://telcobridges.com/learning/sip-trunking/sbc-amr-to-g711-transcoding/): How SBCs transcode between AMR (mobile) and G.711 (fixed-line) codecs for VoLTE-to-PSTN interworking. - [SBC SIP Trunk](https://telcobridges.com/learning/sip-trunking/sbc-sip-trunk/): How a session border controller secures and normalizes SIP trunking — topology hiding, header manipulation, and codec negotiation. - [SIP 5xx Response Codes Explained](https://telcobridges.com/learning/sip-trunking/sip-response-codes-5xx/): What 5xx server error codes mean in SIP and how SBCs handle them — failover, retry logic, and troubleshooting. - [SIP Call Flow Explained](https://telcobridges.com/learning/sip-trunking/sip-call-flow-explained-step-by-step/): Step-by-step walkthrough of every SIP message in a call — INVITE, 100 Trying, 180 Ringing, 200 OK, ACK, BYE. - [SIP INVITE Message Structure](https://telcobridges.com/learning/sip-trunking/sip-invite-message-structure-and-headers/): Detailed breakdown of the SIP INVITE message — request line, headers, SDP body, and what each field controls. - [SIP Response Codes: Complete Guide](https://telcobridges.com/learning/sip-trunking/sip-response-codes-complete-guide/): Comprehensive reference for all SIP response codes — 1xx through 6xx with explanations and SBC handling behavior. - [SIP Trunk Pricing Guide](https://telcobridges.com/learning/sip-trunking/sip-trunk-pricing-guide/): How SIP trunk pricing is structured — per-channel, per-minute, and bundled models, hidden costs, and a five-step comparison method. - [T.38 Fax SBC Configuration](https://telcobridges.com/learning/sip-trunking/t38-fax-sbc-configuration/): Setup guide for configuring T.38 fax relay on ProSBC — codec settings, T.38 negotiation, and troubleshooting fax failures. - [Understanding SIP Headers: Complete Reference](https://telcobridges.com/learning/sip-trunking/understanding-sip-headers-complete-reference/): Comprehensive SIP header reference — From, To, Via, Contact, Route, Record-Route, and how SBCs manipulate each. - [Understanding SIP Signaling Fundamentals](https://telcobridges.com/learning/sip-trunking/sip-signaling-fundamentals/): Fundamentals of VoIP call control — SIP architecture, message types, dialog management, and interoperability concepts. - [VitalPBX + SBC Integration](https://telcobridges.com/learning/sip-trunking/vitalpbx-sbc-integration/): Securing VitalPBX voice infrastructure with an SBC — SIP trunk configuration, NAT handling, and security hardening. - [VoIP Codec Guide](https://telcobridges.com/learning/sip-trunking/voip-codec-guide/): Complete guide to VoIP codecs — G.711, G.722, G.729, Opus, AMR — bandwidth, quality, and SBC transcoding considerations. - [VoIP Phone Numbers and DID](https://telcobridges.com/learning/sip-trunking/voip-phone-numbers-and-did/): How VoIP phone numbers and Direct Inward Dialing work, and how SBCs route DID traffic across SIP trunks. - [VoIP Termination Providers](https://telcobridges.com/learning/sip-trunking/wholesale-voip-termination/): What VoIP termination is, how wholesale voice carriers deliver outbound calls to the PSTN, and how to evaluate a termination provider. - [WebRTC vs SIP: Differences and Use Cases](https://telcobridges.com/learning/sip-trunking/webrtc-vs-sip-differences-and-use-cases/): Comparing WebRTC and SIP — protocols, browser vs infrastructure, and when each is the right choice. - [WebRTC-to-SIP Gateway Architecture](https://telcobridges.com/learning/sip-trunking/webrtc-to-sip-gateway-architecture/): Components, protocol translation, and deployment patterns for bridging WebRTC browser sessions to SIP networks. - [What Is IMS?](https://telcobridges.com/learning/sip-trunking/what-is-ims/): IP Multimedia Subsystem architecture explained — CSCF nodes, HSS, application servers, and where the SBC sits in the IMS core. - [What Is SIP ALG and Why You Should Disable It](https://telcobridges.com/learning/sip-trunking/sip-alg-and-why-to-disable-it/): Why SIP Application Layer Gateways break VoIP, how to detect ALG interference, and how an SBC solves the problem properly. - [What Is SIP?](https://telcobridges.com/learning/sip-trunking/what-is-sip/): Session Initiation Protocol explained for voice network engineers — architecture, message flow, and SBC integration. - [What Is SMS?](https://telcobridges.com/learning/sip-trunking/what-is-sms/): From SS7 signaling to IMS — how SMS works, the SMSC architecture, and the SBC's role at the messaging border. - [What Is the PSTN?](https://telcobridges.com/learning/sip-trunking/pstn/): Public Switched Telephone Network explained — circuit-switched architecture, the migration to IP voice, and where SBCs bridge the two worlds. - [Wholesale SIP Trunking](https://telcobridges.com/learning/sip-trunking/wholesale-sip-trunking/): How wholesale SIP trunking works from the reseller's perspective — pricing, margins, multi-carrier routing, and fraud protection. ### VoIP Security and Fraud Prevention articles - [How SBCs Protect Voice Networks](https://telcobridges.com/learning/voip-security/sbc-security/): Five SBC security layers, encryption, fraud prevention. - [Branded Caller ID](https://telcobridges.com/learning/voip-security/branded-caller-id/): How verified business calling works end to end — Rich Call Data, STIR/SHAKEN integration, and impact on answer rates. - [CNAM Lookup](https://telcobridges.com/learning/voip-security/cnam-lookup/): How CNAM lookup works, its role in caller ID delivery, SBC integration requirements, STIR/SHAKEN pairing. - [Do-Not-Originate (DNO) Lists](https://telcobridges.com/learning/voip-security/do-not-originate-dno/): What DNO lists contain and how the FCC's December 2025 mandate requires providers to block calls from DNO-listed numbers at the SBC. - [FCC STIR/SHAKEN Compliance for Small VoIP Providers](https://telcobridges.com/learning/voip-security/fcc-stir-shaken-small-voip-providers/): Compliance requirements, timelines, and SBC implementation steps for small voice providers meeting FCC STIR/SHAKEN mandates. - [FCC STIR/SHAKEN Own-Certificate Rule](https://telcobridges.com/learning/voip-security/fcc-stir-shaken-own-certificate-rule/): What voice providers must know to comply — auditing signing arrangements, SPC tokens, attestation. - [Is TLS 1.2 End of Life?](https://telcobridges.com/learning/voip-security/tls-1-2-end-of-life/): TLS 1.0 and 1.1 are retired; TLS 1.2 is under pressure but not deprecated. What the deprecation timeline means for SIP-over-TLS deployments and how to migrate safely. - [Phone Number Reputation](https://telcobridges.com/learning/voip-security/phone-number-reputation/): How carriers score and label calls — what phone number reputation is, why legitimate calls get labeled spam, and what operators can control at the SBC edge. - [Rich Call Data (RCD)](https://telcobridges.com/learning/voip-security/rich-call-data/): Verified caller information carried inside the STIR/SHAKEN PASSporT — business name, logo, call reason, cryptographically bound to the call. - [SBC Access Control List Configuration](https://telcobridges.com/learning/voip-security/sbc-access-control-list-configuration/): Designing IP allow-lists that hold up in production — ACL architecture, rule ordering, and common deployment mistakes. - [SBC for Voice Biometric Authentication](https://telcobridges.com/learning/voip-security/sbc-voice-biometric-authentication/): Where the voiceprint engine plugs into the call — SBC media forking, API integration, and enrollment flows. - [SBC mTLS: Mutual TLS Authentication](https://telcobridges.com/learning/voip-security/sbc-mtls-mutual-authentication/): How mutual TLS works for SIP signaling — certificate exchange, Teams Direct Routing requirements, and SBC configuration. - [SBC REST API Call Routing Integration](https://telcobridges.com/learning/voip-security/sbc-rest-api-call-routing-integration/): B2BUA architecture, GET/POST patterns, fraud scoring, STIR/SHAKEN, LNP, ProSBC implementation. - [SBC TLS and SRTP Configuration Guide](https://telcobridges.com/learning/voip-security/sbc-tls-srtp-configuration-guide/): Per-trunk policies, SDES vs DTLS-SRTP, mTLS for Teams DR, RTP-to-SRTP conversion, and troubleshooting. - [SBC Toll Fraud Prevention in Real Time](https://telcobridges.com/learning/voip-security/sbc-toll-fraud-prevention-real-time/): How SBCs detect and block toll fraud in real time — rate limiting, geo-fencing, time-of-day policies, and API-driven fraud scoring. - [SIP DoS Attack Prevention](https://telcobridges.com/learning/voip-security/sip-dos-attack-prevention-sbc/): How an SBC stops SIP INVITE, REGISTER, OPTIONS/BYE, and malformed-message floods that network firewalls cannot detect. - [SIP Firewall vs SBC](https://telcobridges.com/learning/voip-security/sip-firewall-vs-sbc/): Comparing SIP-aware firewalls and session border controllers — what each protects, where they overlap, and when you need both. - [STIR/SHAKEN A-Level Attestation](https://telcobridges.com/learning/voip-security/stir-shaken-a-level-attestation/): What A-level attestation requires — FCC own-certificate rule, SBC signing integration, and the processes that keep you compliant. - [STIR/SHAKEN and the Programmable SBC](https://telcobridges.com/learning/voip-security/stir-shaken-and-call-authentication/): How configurable SBCs handle STIR/SHAKEN signing, verification, and per-call attestation control. - [STIR/SHAKEN Attestation Levels Explained](https://telcobridges.com/learning/voip-security/stir-shaken-attestation-levels-explained/): Full, partial, and gateway attestation (A, B, C) — what each level means, when each applies, and how SBCs assign them. - [STIR/SHAKEN SBC Implementation Guide](https://telcobridges.com/learning/voip-security/stir-shaken-sbc-implementation-guide/): Step-by-step STIR/SHAKEN SBC guide: FCC prerequisites, ClearIP signing over SIP, NAP service_type, attestation levels, verification, and failover. - [Telecom Fraud Detection](https://telcobridges.com/learning/voip-security/telecom-fraud-detection/): How carriers catch fraud in real time — IRSF, Wangiri, PBX hacking, and caller ID spoofing detection at the SBC edge. - [Telecom Fraud Management](https://telcobridges.com/learning/voip-security/telecom-fraud-management/): Building a carrier-grade fraud program — detection, prevention, investigation, recovery, and the SBC as real-time enforcement point. - [Traffic Pumping and Access Arbitrage](https://telcobridges.com/learning/voip-security/traffic-pumping/): How access stimulation schemes manufacture billable minutes, the FCC's regulatory response, and SBC defenses including velocity caps and greylisting. - [VoIP Call Quality Issues: Diagnosis and Fixes](https://telcobridges.com/learning/voip-security/voip-call-quality-issues-diagnosis-and-fixes/): Common call quality problems — jitter, packet loss, echo, one-way audio — with diagnostic steps and SBC-level fixes. - [VoIP Monitoring Best Practices](https://telcobridges.com/learning/voip-security/voip-monitoring-best-practices/): Six metrics that matter, SBC data sources, action thresholds, seven practices that catch problems early. - [VoIP Security Threats and SBC Protection](https://telcobridges.com/learning/voip-security/voip-security-threats-sbc-protection/): Comprehensive guide to VoIP security threats — registration hijacking, eavesdropping, toll fraud, DDoS — and how SBCs defend against each. - [VoIP Troubleshooting Guide](https://telcobridges.com/learning/voip-security/voip-troubleshooting-guide/): Common VoIP issues, first-pass diagnostics, and where to look next — a practitioner's troubleshooting reference. - [What Is SRTP?](https://telcobridges.com/learning/voip-security/what-is-srtp/): Secure Real-Time Transport Protocol explained — encryption, authentication, SBC deployment, and compliance for Teams, WebRTC, HIPAA, PCI DSS. ## Compare - [SBC Comparisons Hub](https://telcobridges.com/sbc/compare/): Central hub for all ProSBC head-to-head comparisons — deployment/cost analysis and product-level comparisons. - [AudioCodes Alternative](https://telcobridges.com/sbc/compare/prosbc-audiocodes-alternative/): ProSBC is the AudioCodes alternative built for service providers: transparent pricing, 30-day self-serve trial, open routing API, no Operator Connect conflict. - [Cisco CUBE Alternative](https://telcobridges.com/sbc/compare/prosbc-cisco-cube-alternative/): Compare Cisco CUBE vs ProSBC: transparent pricing, 60,000-session capacity, software-only deployment, open routing API. Free 30-day trial. - [Ribbon SBC Alternative](https://telcobridges.com/sbc/compare/prosbc-ribbon-alternative/): ProSBC is the Ribbon SBC alternative for mid-market service providers: transparent pricing, KVM/Proxmox-ready, open STIR/SHAKEN, 1+1 HA from 500 sessions. - [Oracle ACME Packet Alternative](https://telcobridges.com/sbc/compare/prosbc-oracle-acme-packet-alternative/): ProSBC as an Oracle ACME Packet replacement for service providers — cutting SBC costs by 12x with software-only deployment and transparent per-session pricing. - [Hardware SBC vs Software SBC: Total Cost of Ownership](https://telcobridges.com/sbc/compare/hardware-sbc-vs-software-sbc-tco/): TCO comparison of hardware and software SBCs — CapEx, OpEx, scaling, and when software wins on total cost. - [Managed SBC vs Self-Hosted SBC](https://telcobridges.com/sbc/compare/managed-sbc-vs-self-hosted-sbc/): Fully managed ProSBC service vs self-hosted deployment — comparing control, cost, staffing, and when each model fits. - [Open Source SBC Options](https://telcobridges.com/sbc/compare/open-source-sbc-options/): Comparing OpenSIPS, Kamailio, FreeSWITCH, and Asterisk as SBC platforms — capabilities, limitations, and when commercial SBCs are the better fit. - [Replace Twilio with a SIP Trunk and an SBC](https://telcobridges.com/sbc/compare/replace-twilio-sip-trunk-sbc/): Technical and economic case for migrating from Twilio's CPaaS model to a direct carrier SIP trunk architecture with an SBC. - [Session Border Controller Vendors: 2026 Comparison](https://telcobridges.com/sbc/compare/sbc-vendor-comparison/): Side-by-side comparison of SBC vendors — AudioCodes, Ribbon, Oracle, Cisco, and ProSBC across features, pricing, and deployment models. - [Twilio Voice Pricing at Scale](https://telcobridges.com/sbc/compare/twilio-voice-pricing-at-scale/): When switching from Twilio's per-minute billing to a self-managed SIP trunk with an SBC becomes financially advantageous. - [Voice Intelligence vs Homer](https://telcobridges.com/voice-intelligence/homer-comparison/): Side-by-side comparison of Voice Intelligence and Homer (open-source SIP capture) — TCO, capabilities, and AI/MCP integration. - [Voice Intelligence vs VoIP Monitor](https://telcobridges.com/voice-intelligence/voip-monitor-comparison/): Side-by-side comparison of Voice Intelligence and VoIP Monitor — CDR+SIP correlation vs deep RTP stream analysis. ## Blog - [Connecting Teams to the PSTN](https://telcobridges.com/blog/connecting-teams-to-the-pstn/): How to extend Microsoft Teams to full PSTN connectivity — SBC requirements, TLS/SRTP, and Direct Routing compliance. - [How Custom Scripting Transforms Voice Traffic Management](https://telcobridges.com/blog/how-custom-scripting-transforms-voice-traffic-management-in-telecommunications/): Six common scripting API use cases in ProSBC — redundancy, routing logic, fraud detection, SIP header rewriting, enriched CDRs. - [Modern Telecom Is Easier to Access, But Harder to Master](https://telcobridges.com/blog/modern-telecom-is-easier-to-access-but-harder-to-master/): How open IP-based telecom made deployment easier but troubleshooting and security significantly harder. - [Modernizing Networks for ILECs with GigTel](https://telcobridges.com/blog/modernizing-networks-for-ilecs-with-gigtel-itexpo-recap/): ITEXPO recap on helping ILECs modernize while maintaining NECA compliance and service continuity. - [Network Modernization in Emerging Markets](https://telcobridges.com/blog/network-modernization-in-emerging-markets/): Challenges telecom operators in Africa, Latin America, and emerging markets face modernizing TDM-to-IP voice networks. - [Out-of-Band SHAKEN: What the New FCC Proposal Means for TDM Networks](https://telcobridges.com/blog/out-of-band-shaken-new-fcc-proposal/): Extending STIR/SHAKEN caller identity verification to legacy TDM networks via the Call Placement Service. - [Robocall Mitigation Program: FCC Requirements](https://telcobridges.com/blog/robocall-mitigation-program-fcc-requirements/): Comprehensive breakdown of the FCC's Robocall Mitigation Program — compliance paths, mandatory elements, and enforcement escalation. - [Teams Direct Routing Certificate Update](https://telcobridges.com/blog/teams-direct-routing-certificate-update/): Alert about Microsoft's upcoming root CA change that could break SBC-to-Teams connectivity — timeline and ProSBC guidance. - [What Makes ProSBC API Integration So Powerful?](https://telcobridges.com/blog/prosbc-api-integration/): How ProSBC's REST API enables real-time integration with STIR/SHAKEN, fraud detection, CNAM, branded calling, and AI analytics. - [Why Spam Calls Still Happen](https://telcobridges.com/blog/why-spam-calls-still-happen/): Why fraudulent calls persist despite regulatory efforts, and how DNO lists, STIR/SHAKEN, and SBCs fight back. - [Why Voice Infrastructure Is Getting Harder to Manage](https://telcobridges.com/blog/why-voice-infrastructure-is-getting-harder-to-manage/): Retiring engineers, regulatory pressure, tool sprawl — and how managed SBC services reduce operational load. ## Support - [Support & Training](https://telcobridges.com/pricing/support-training/): Support (configuration, troubleshooting, installation) and Training, delivered by a global team of telecom professionals. - [TB Wiki — Technical Documentation](https://docs.telcobridges.com/wiki/Main_Page): Comprehensive technical documentation, configuration guides, and troubleshooting (12,000+ pages covering ProSBC, Tmedia, Tsig, and integrations). - [Webinars](https://telcobridges.com/webinars/): Live webinars and office hours covering SBC best practices, STIR/SHAKEN compliance, and VoIP technology. Upcoming sessions and past recordings. ## Case studies - [Fusion Networks](https://telcobridges.com/case-studies/fusion-networks/): How Fusion Networks improved voice quality and blocked toll fraud using TelcoBridges ProSBC, with RESTful APIs for automated call routing. - [Paratus](https://telcobridges.com/case-studies/paratus/): How Paratus built a reliable, scalable voice network in Africa using TelcoBridges ProSBC — geo-redundant architecture, seamless billing integration. - [X2nSat](https://telcobridges.com/case-studies/x2nsat/): How X2nSat uses ProSBC and hardware transcoding to deliver reliable satellite-based business continuity for enterprise clients. - [Vivaro Telecom (Marcatel)](https://telcobridges.com/case-studies/marcatel/): How Vivaro Telecom (formerly Marcatel) uses ProSBC for intelligent call rate management, ANI substitution, and high-capacity SIP trunking for contact centers. - [Unifique](https://telcobridges.com/case-studies/unifique/): How Unifique expanded its voice network across Brazil using Tmedia gateways and ProSBC, including migration to SIP-I and high-density SS7 signaling. - [Atlantic Coast Automotive](https://telcobridges.com/case-studies/atlantic-coast-auto/): How Atlantic Coast Automotive used TMG800 and TransNexus ClearIP to stop crippling TDoS attacks and restore voice service. - [Aircall](https://telcobridges.com/case-studies/aircall/): How Aircall uses ProSBC on AWS to scale their global cloud phone system — SIP normalization, RESTful API management, media bypass for low latency. - [Selectron](https://telcobridges.com/case-studies/selectron/): How Selectron Technologies uses ProSBC to deliver a PCI-compliant hosted IVR solution for 500+ government agencies across North America. - [ILEC](https://telcobridges.com/case-studies/ilec/): An ILEC replaced legacy switches with Tmedia gateways, maintaining regulatory compliance without the high cost of legacy equipment. - [IP Network Transformation (Hong Kong)](https://telcobridges.com/case-studies/ip-network-transformation/): A major Hong Kong telecom replaced aging TDM switches with TMG media gateways and cloud softswitches, saving $2M annually in energy costs. - [Wabash Communications](https://telcobridges.com/case-studies/wabash/): How Wabash implemented Out-of-Band STIR/SHAKEN on a hybrid SIP/TDM network using ProSBC and TransNexus ClearIP to eliminate robocalls. - [3CX in the Cloud (Austen Consultants)](https://telcobridges.com/case-studies/3cx-in-the-cloud/): How Austen Consultants uses ProSBC to host 3CX in the cloud — solving NAT traversal, security, and robocall issues for a scalable UCaaS solution. - [AssisTT (Turk Telekom)](https://telcobridges.com/case-studies/assistt-ccaas/): How AssisTT integrated Avaya and Genesys contact centers with SIP trunks using ProSBC for high-performance call handling and reliability. - [Voxco](https://telcobridges.com/case-studies/voxco/): Montreal-based Voxco migrated its telephony survey engine to a private cloud using ProSBC to consolidate traffic from multiple high-speed dialers. - [VitalPBX](https://telcobridges.com/case-studies/vitalpbx/): How VitalPBX uses TelcoBridges SBC technology to protect enterprise IP-PBX deployments from SIP scanners, DDoS attacks, and toll fraud. - [Netcom](https://telcobridges.com/case-studies/netcom/): How Netcom (Cyprus) used FreeSBC to manage SIP trunking, integrate with FreeSWITCH, and protect its network from DDoS attacks. - [Palau Telecoms](https://telcobridges.com/case-studies/palau-telecoms/): How Palau Telecoms provided affordable voice and internet services across the archipelago using TelcoBridges SBC software with high availability and low footprint. - [MERS Goodwill](https://telcobridges.com/case-studies/goodwill/): How MERS Goodwill of Missouri migrated to SIP trunking using ProSBC — cost-effective DID routing and easy-to-manage VoIP. - [Network Intelligence](https://telcobridges.com/case-studies/network-intelligence/): How Network Intelligence uses ProSBC and Restcomm CPaaS on AWS to improve the efficiency of 2-1-1 emergency services in California. - [TNS](https://telcobridges.com/case-studies/tns/): How TNS uses Tsig signaling gateways to help carriers modernize networks — converting legacy SS7 links to IP-based SIGTRAN and SIP. - [Aarenet (Southeast Asia carrier)](https://telcobridges.com/case-studies/aarenet/): How Aarenet and TelcoBridges helped a Southeast Asian telecom upgrade legacy SS7 gateways to TMG7800, boosting reliability and cutting costs. - [Infomedia](https://telcobridges.com/case-studies/infomedia/): How Infomedia, a Southeast Asian BPO, uses ProSBC to manage 50 million interactions per month and scale its contact center operations. - [NG911 Legacy Switch Compliance](https://telcobridges.com/case-studies/ng911-legacy-switch-compliance/): Tier-1 ILEC meets state NG911 mandate by deploying Tmedia gateways to convert TDM 911 traffic to SIP — zero service disruption, repeatable blueprint across 25 states. ## Optional - [Blog](https://telcobridges.com/blog/): TelcoBridges blog — expert insights on SBCs, Microsoft Teams Direct Routing, STIR/SHAKEN, and the latest trends in carrier-grade voice infrastructure. - [News Archive](https://telcobridges.com/news/): Company news, press releases, and announcements. - [Awards and Recognition](https://telcobridges.com/awards/): Award-winning leader in SBC and media gateway technology — recognition from Cloud Computing Product of the Year to Best Workplaces in Canada. - [Alliance Partners](https://telcobridges.com/partners/): TelcoBridges Alliance Partner Program — interoperability, traffic management, regulatory compliance partners. - [About TelcoBridges](https://telcobridges.com/about/): Leader in carrier-grade Session Border Controllers and VoIP Media Gateways. Serving service providers in 110+ countries with 99.999% reliability. - [Contact](https://telcobridges.com/contact-us/): Contact TelcoBridges for sales, technical support, or partner inquiries. Global teams in the Americas, EMEA, and Asia Pacific.