AstraQom — telecomunicaciones globales para empresas, inicio
AstraQom — telecomunicaciones globales para empresas, inicio

Microsoft Teams Direct Routing: guía empresarial — AstraQom

Cómo las empresas usan los troncales SIP Tier-1 de AstraQom para la voz de Microsoft Teams mediante Direct Routing en 117 países, frente a los Calling Plans de Microsoft.

What is Microsoft Teams Direct Routing?

Direct Routing connects Microsoft Teams Phone to the public telephone network through a certified Session Border Controller (SBC) and a SIP trunk from a carrier like AstraQom — instead of buying voice minutes from Microsoft as Calling Plans. You keep Teams as the user experience while your carrier handles PSTN termination, DID numbers, emergency routing and international coverage.

Direct Routing vs Microsoft Calling Plans

  • Country coverage: Calling Plans are limited to a short list of Microsoft-served countries; Direct Routing with AstraQom delivers local DIDs and termination across 117 countries under one contract.
  • Rates: Tier-1 wholesale rates — no per-user bundled minutes you may not use. Bring your own numbers, keep existing porting.
  • Support: 24/7 human NOC vs Microsoft's tiered ticket queue.
  • Numbering flexibility: keep legacy PBX numbers, add toll-free, use shared trunks across Teams, contact centre and legacy PBX during migration.
  • Compliance: STIR/SHAKEN in North America, local emergency services (E911 / 112), call recording integrations.

How Direct Routing works with AstraQom

  1. AstraQom provisions a SIP trunk to a Microsoft-certified SBC (AudioCodes, Ribbon, Oracle, Cisco CUBE, AnyNode, TeamMate).
  2. The SBC is paired with your Teams tenant via PowerShell (New-CsOnlinePSTNGateway) and voice routing policies.
  3. Users are licensed with Teams Phone and enabled for Enterprise Voice.
  4. Outbound calls leave Teams → SBC → AstraQom Tier-1 routes. Inbound DIDs land on the same trunk and are routed to Teams users.

When Direct Routing is the right choice

  • You operate in countries Microsoft Calling Plans don't cover.
  • You need to keep hundreds or thousands of existing DIDs.
  • You want a single carrier contract for Teams, contact centre and legacy PBX.
  • You need contact-centre integrations, call recording or analytics that a carrier-agnostic SIP trunk unlocks.
  • Your finance team wants transparent per-minute pricing instead of bundled seats.

Deployment checklist

  1. Inventory Teams users, sites and required DIDs by country.
  2. Choose an SBC deployment model: on-premise, cloud (Azure) or SBCaaS via AstraQom.
  3. Provision the SIP trunk, DIDs and emergency routing.
  4. Configure Teams voice routing, dial plans and emergency locations.
  5. Port numbers, pilot with a user group, then cut over site by site.

Security and resilience

  • TLS 1.2+ signaling and SRTP media between the SBC and AstraQom's network.
  • Dual SBC pairing and geo-redundant AstraQom PoPs for automatic failover.
  • Per-trunk concurrent-call caps and fraud monitoring to blunt toll fraud.

Talk to an AstraQom Teams specialist to design a Direct Routing deployment for your organization.