Session border controllers, protocol translation, codec negotiation, Teams Direct Routing, Zoom Phone bridges, legacy PBX gateways. The integration layer that lets your voice stack be heterogeneous without being chaotic.
Your voice environment did not get designed. It accumulated. The Avaya PBX from the 2015 acquisition still runs the warehouse. Marketing uses Zoom Phone because they liked the demo. The IT team moved everyone else to Teams. The call centre is on something else. Your PSTN carrier changed twice in the last five years. Somewhere in the middle, calls are supposed to flow between all of these systems cleanly, and most of the time they almost do.
Integration is the layer that makes a heterogeneous voice stack work like one system. A session border controller handles the standards-level interop (SIP flavours, H.323 legacy, codec negotiation, NAT and firewall traversal, TLS and SRTP for the security envelope). Protocol bridges translate between what one system speaks and what another expects. Direct Routing wires Teams into your Canadian PSTN without going through Microsoft Calling Plans. BYOC lets Zoom Phone use the carrier of your choice. Analytics pipelines pull CDRs from every system into one place for reporting.
We build the integration layer that lets your voice stack be what it already is, mixed and inherited and politically negotiated, while behaving like something coherent to the people using it.
Three feature groups covering the SBC core, the platform-specific bridges, and the operational and compliance tooling that sits on top.
The standards-level interop core. Handles SIP signalling, codec negotiation, security, and NAT traversal between every system in your voice stack.
Direct Routing for Teams, BYOC for Zoom, Webex Calling CCP, and the legacy PBX gateways that bring 2010s-era systems into the current voice stack.
Monitoring, failover, compliance pass-through, and the integration points into CRMs, analytics, and recording systems that make the integration layer accountable.
Not every voice environment needs a dedicated integration layer. These are the situations where it is the right investment.
Microsoft Calling Plans are expensive in Canada and limit your carrier choice. Direct Routing lets you use any Canadian SIP carrier, keep your current numbers, and often cut per-user monthly cost by half or more. We handle the SBC, the Teams-side configuration, the carrier interconnect, and the Canadian E911/STIR-SHAKEN compliance pieces that Microsoft does not provide.
The Avaya or Cisco or Nortel PBX works, people are trained on it, replacing it is a project nobody has the budget for. The integration layer lets you bridge it to modern SIP and cloud services so the old system can keep doing its job while new users land on new platforms, with calls flowing between them cleanly. Buys you years of runway for a planned migration instead of a forced one.
Different departments picked different tools. Sales is on Zoom Phone, support is on Teams, executives use Webex. Each works fine in isolation and badly together. Integration bridges each platform to a common SIP core, so calls route between departments, your PSTN carrier is unified, and your reporting shows one picture instead of three.
The acquired company has its own PBX, carrier, numbers, and voice workflows. Full migration to your platform takes 6 to 18 months. Integration gets them talking to your stack in weeks, so people on both sides can call each other normally while the longer consolidation project runs on its own timeline. The alternative is parallel operations that drift further apart the longer they run.
Integration work is where "almost compliant" becomes a problem. We follow the standards tightly and document every deviation.
Current voice stack inventory, signalling flows, codec usage, security posture, and the undocumented workarounds that are holding things together. Deliverable is an honest topology diagram.
SBC architecture, bridge configurations, security envelope, failover paths, compliance pass-through strategy. Signed off before any configuration touches live systems.
SBC provisioned, bridges configured, security certificates installed, test calls validated across every path, failover tested with real cutover simulations.
Monitoring, bridge health alerts, quarterly configuration review, upgrade planning as platforms evolve (Teams changes its SBC certification list roughly annually).
Direct answers to the six questions we hear most often about integration specifically.
Thirty minutes with a practitioner, not a sales rep. We will walk through your current voice stack and scope the integration work honestly, including when you do not actually need an integration project.