Technical Authority

FMC Routing.
Your Network. Your Rules.

Control how every call is handled — route via SIM, PBX, or both. Fully integrated with your telecom infrastructure.

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What is FMC Routing?

FMC (Fixed Mobile Convergence) routing allows mobile calls to behave as part of your internal phone system.

Instead of mobile calls being handled only by the carrier network, calls can be routed through your own SBC or PBX — giving you full control over how they are processed. This enables mobile devices to operate as true extensions of your business telephony platform.

The Result: You decide what happens next. Mobile voice is no longer a silo — it's an integrated endpoint.

How Call Routing Works

All mobile calls can be directed based on your configuration at the network level.

Legacy Mode

1. SIM-Only Routing

Calls are delivered directly to the mobile device, bypassing internal systems.

Use Case

  • • Standard mobile users
  • • Field staff without PBX integration
Control Mode

2. PBX / SBC Routing

All calls are passed to your telephony platform via SIP for centralized processing.

Use Case

  • • Call centres & Queues
  • • Businesses centralising control
Hybrid Mode

3. SIM + PBX (Simul-ring)

Calls are delivered to both mobile and PBX at the same time for total availability.

Use Case

  • • Hybrid working environments
  • • Management & Sales teams
Unified Comms

Short Code & Extension Dialing

Mobile users can dial internal extensions (e.g. 1234), just like on a desk phone. Internal dial plans remain consistent across all devices.

  • PBX Routing: Calls are routed via your PBX first.
  • Translation: The PBX handles translation to full numbers.
  • Consistency: Zero learning curve for employees moving from desk to mobile.
Technical Edge

SBC Integration

  • ✓ Compatible with Audiocodes and similar platforms
  • ✓ SIP-based routing for inbound and outbound calls
  • ✓ Full control of call flows within your infrastructure

Technical Routing Architecture

Mobile SIM / App
User Endpoint
↕
Core Mobile Network
Traffic Intelligence Layer
↕ (SIP Trunk)
Session Border Controller (SBC)
Customer Edge (e.g. Audiocodes)
↓
PBX Content / Application Engine
Logic & Call Handling

Control & Configuration

Routing behaviour is fully programmable and can be adjusted dynamically based on your business logic.

  • • User profiles and permission tiers
  • • Device types and network capabilities
  • • Inbound vs Outbound directionality
  • • Custom business rules & schedules

No SIM Swaps

Changes are pushed at the network level instantly.

Transparent Logs

Full CDR visibility for every routed call leg.

Hybrid Ready

Mix standard mobile and FMC users on one plan.

Global Scale

Consistent routing logic across UK and International markets.

Why FMC Routing Matters

Voice is no longer tied to the SIM — it becomes part of your platform.

Traditional Mobile Networks

  • ✕ Calls are locked to the SIM card
  • ✕ Limited operational control
  • ✕ No integration with business telephony
  • ✕ Siloed data and visibility

Viora FMC Routing

  • ✓ Calls are part of your unified system
  • ✓ Fully programmable routing logic
  • ✓ Consistent experience across all handsets
  • ✓ Centralized reporting and compliance

Take Control of Mobile Voice

Turn mobile numbers into fully integrated endpoints within your telecom platform.

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