AudioCodes Alternative: ProSBC for ISPs, MSPs, and Call Centres
If you sell voice for a living — an ISP peering two carriers, an MSP running Teams voice for a hundred tenants, a call centre connecting to half a dozen SIP providers — chances are AudioCodes came up in the evaluation. They’re a well-known enterprise UC vendor, a Microsoft Premier Partner, and they sell a solid Session Border Controller (the Mediant family, from hardware appliances to the Mediant Virtual Edition and the cloud-native Mediant Cloud Edition).
ProSBC is a different kind of SBC, built for a different buyer. Where AudioCodes is optimized for enterprise UC and Microsoft Operator Connect, ProSBC is purpose-built for service providers: carrier-grade session capacity, published per-session pricing, a programmable routing API, and no channel conflict with the MSPs and ISPs who deploy it. This page is for the service provider comparing the two.
What ISPs, MSPs, and Call Centres Need from an SBC
Enterprise UC and service-provider infrastructure solve different problems. Service providers run multi-tenant voice, integrate with fraud-prevention and billing platforms, and live or die by their margins. ProSBC is optimized for that set of requirements.
Purpose-built for service providers
AudioCodes serves a broader market that includes enterprise UC and Teams calling directly to the end customer via Operator Connect. ProSBC’s focus is narrower: the best SBC for ISPs, MSPs, and call centres. TelcoBridges does not sell Teams calling services or go direct to enterprise, so the product’s job is to make service-provider infrastructure work, not to compete with the people deploying it.
Transparent, published pricing
Published per-session pricing lets service providers cost the infrastructure before talking to anyone. Pricing models, trunk-group economics, and customer margins can be built with confidence, not rebuilt after a quote comes back.
Self-serve in ~20 minutes
The 30-day ProSBC trial is fully self-serve. Go to telcobridges.com, download, activate online, and have a running SBC instance in roughly 20 minutes. No sales engagement required to start evaluating.
Open routing API
ProSBC’s Ruby routing engine integrates with whatever platforms are already in the network: fraud prevention, STIR/SHAKEN signing, LNP, billing, CDR pipelines. Bring your own tools, connect them via open API.
Fraud protection as a primary use case
Toll fraud is a revenue risk for service providers, so ProSBC treats real-time per-call risk scoring and dynamic blacklisting as core infrastructure, with validated integrations with TransNexus ClearIP, SecureLogix, and YouMail.
STIR/SHAKEN: open partner model
ProSBC’s open API lets the operator choose a STIR/SHAKEN signing service (TransNexus ClearIP, Neustar, or another partner already in the network), with primary/secondary redundancy and P-Identity-Bypass fallback if the signing service is unavailable.
ProSBC vs. AudioCodes: Head-to-Head
Thirteen data points across five categories. Use the filter chips to zero in on the category that matters most for your evaluation. Where AudioCodes Mediant leads on a row, we say so.
Pricing and specifications may change; contact TelcoBridges for current ProSBC commercial terms and AudioCodes directly to verify Mediant specifications by product model before a final evaluation.
- You’re an enterprise UC buyer standardized on the Microsoft ecosystem
- You need HA with no loss of calls on failover
- You need Hyper-V, Google Cloud, or container deployment (Mediant VE/CE)
- You’re an ISP, MSP, or call centre, and service-provider economics and programmability matter
- You need published pricing and a self-serve trial before any vendor conversation
- You want an open Ruby routing API to connect fraud, STIR/SHAKEN, LNP, and billing tools on your terms
- You don’t want your SBC vendor competing with you for end-customer Teams calling
Built for Your Deployment Model
ProSBC is deployed across ISP peering infrastructure, MSP managed services, and call-centre access-SBC roles. The feature set is the same; the use case changes.
- Peering SBC for carrier-to-carrier SIP trunking
- Up to 1,024 NAPs for multi-carrier management
- CDR output (text/RADIUS) for billing reconciliation
- DoS/DDoS protection and dynamic blacklisting
- STIR/SHAKEN for FCC compliance
- Published pricing ($1.25/session/yr) so margins can be modelled before any vendor call
- Subscription model maps cleanly to per-trunk or per-seat billing
- 30-day self-serve trial; validate in a lab without a sales engagement
- 1+1 HA for SLA-backed managed voice services
- No Operator Connect: ProSBC doesn’t compete for the MSP’s end customers
- Open API: bring your own fraud, STIR/SHAKEN, and routing tools
- MaaS monitoring or full Managed Service for operational flexibility
- Access SBC for IP-PBX and contact-centre platforms
- CPaaS integrations: Telestax, Cloudoni, Twilio
- SaaS voice: Aircall, Genesys interoperability
- Real-time toll-fraud protection and per-call risk scoring
- SIP/TLS and SRTP for remote and WFH agent security
- Teams Direct Routing for Microsoft-based contact centres
Why Service Providers Choose ProSBC
ProSBC is a carrier-grade, software-based Session Border Controller built on over twenty years of SIP deployment experience. It runs on any infrastructure, scales to carrier-grade capacity, and ships with the programmability and integrations service providers need.
The only published per-session price in the market
$1.25/session/year, publicly listed. AudioCodes does not publish pricing. You know your ProSBC cost before talking to anyone.
Self-serve trial, running in about 20 minutes
A 30-day free trial, no sales call required. Download, activate online, and have a functional SBC in roughly 20 minutes. A permanent ProLab license keeps lab access available after the trial.
Pure software on any infrastructure
VMware, KVM/Proxmox, VNF on uCPE, AWS, Microsoft Azure, and baremetal. No proprietary hardware. Carrier-grade scale to 60,000 sessions per server and 1,024 NAPs per instance.
Open routing API
Both ProSBC and AudioCodes provide configuration wizards for initial setup. ProSBC adds a first-class Ruby API that integrates with any external fraud, STIR/SHAKEN, LNP, or routing tool.
STIR/SHAKEN: open partner model
AudioCodes has a proprietary STIR/SHAKEN implementation. ProSBC’s open API lets operators choose a signing service (TransNexus ClearIP, Neustar, or another) with primary/secondary redundancy and a P-Identity-Bypass fallback.
Real-time fraud protection, open integrations
Per-call risk scoring via TransNexus ClearIP, SecureLogix, or YouMail. Dynamic blacklisting and per-NAP ACLs. Your fraud platform, connected via API.
1+1 HA and a Managed Service option
ProSBC+ adds active/standby redundancy for maximum uptime and minimal downtime. The Managed Service option (ProSBC+, 24×7 support, setup and monitoring on the customer’s platform) is available for teams that want a fully managed deployment.
MaaS, a standalone monitoring product
MaaS is a hosted monitoring platform for ProSBC infrastructure, available standalone or bundled with the Managed Service. It is a monitoring product, not the Managed Service itself.
Frequently Asked Questions
Is ProSBC a drop-in replacement for AudioCodes?
ProSBC is not a hardware clone of AudioCodes Mediant; it is a software SBC with a different architecture and programming model. Most ISPs and MSPs migrating from AudioCodes to ProSBC run both in parallel during a transition period, moving NAPs and trunk groups across over time. Any custom routing logic needs to be reimplemented in ProSBC’s Ruby API module framework, which most engineers find preferable because it gives them more control than AudioCodes’ configuration-driven approach.
What is the pricing model for ProSBC vs. AudioCodes?
ProSBC publishes its pricing: $1.25 per session per server per year on an annual OPEX subscription. AudioCodes does not publish list pricing; every quote flows through a distributor or reseller channel. For MSPs building margins, that difference is significant: ProSBC lets the operator calculate infrastructure cost and build a pricing model before any vendor conversation. AudioCodes also offers usage-based pricing metered by call minutes, transcoding, and recording on AWS Marketplace, which introduces forecasting complexity that per-session subscription pricing avoids.
Does AudioCodes compete with MSPs?
Yes. AudioCodes is a Microsoft Premier Partner, including for Microsoft Operator Connect, a program that allows certified partners to sell Teams calling services directly to enterprises. MSPs building a Teams Direct Routing or Teams calling practice should evaluate whether their SBC vendor also competes for the same enterprise customers they serve. ProSBC is a pure infrastructure vendor; TelcoBridges has no Operator Connect program and does not sell directly to enterprises as a calling service provider.
Does ProSBC support STIR/SHAKEN?
Yes. ProSBC implements full STIR/SHAKEN signing, attestation (A, B, and C levels), and verification. It integrates with external HTTP-based signing services including TransNexus ClearIP and Neustar, and supports primary plus secondary signing service URLs for redundancy. If the signing service is unavailable, ProSBC inserts a P-Identity-Bypass header rather than failing the call.
Can ProSBC run on the same infrastructure as AudioCodes virtual editions?
ProSBC runs on standard x86 hardware via VMware, KVM/Proxmox, AWS, Microsoft Azure, or as a baremetal install. If an existing AudioCodes VE deployment runs on one of those platforms, ProSBC can run on the same infrastructure. AudioCodes VE also supports Hyper-V, Google Cloud, and container environments that ProSBC does not currently support, and note that native HA on Azure requires additional configuration on ProSBC compared to the out-of-the-box HA available on other supported platforms. Verify platform compatibility with TelcoBridges before migration.
Evaluate ProSBC as Your AudioCodes Alternative
ProSBC gives service providers a transparent, programmable, software-only SBC with the per-session economics, open integrations, and operator flexibility that enterprise UC SBCs were never optimized for. The 30-day trial is self-serve and immediate: download, activate online, and pressure-test the SBC against real infrastructure before any vendor conversation.
If a fully managed deployment fits better, the Managed Service option pairs ProSBC+ with 24×7 support and day-to-day setup and monitoring on your platform.