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Voice connectivity · 05

Twilio SIP connectivity for AI agents

Connect voice agents to business calling through a focused SIP and telephony layer.

We use Twilio SIP and voice services only where they support a defined AI-agent deployment, including phone-number routing, inbound and outbound call paths, and hand-off design.

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Included scope

What we configure and deliver.

  • Twilio SIP trunk and domain configuration
  • Inbound and outbound call routing
  • Phone-number and endpoint configuration
  • Secure connectivity and failure-path planning
  • Voice-agent and human-transfer call flows

Business fit

Defined use cases. Measurable operating value.

Expected outcomes

  • A documented voice path between callers and the agent
  • Controlled routing for inbound, outbound and transfer scenarios
  • Connectivity tested against realistic call conditions

Common starting points

ElevenLabs telephony connectivity
Nova 2 Sonic telephony entry points
Existing PBX or SIP hand-off
Regional business numbers for agent calls

Delivery model

From scope to handover.

Every engagement is bounded by the selected platform and agreed business journey. We confirm responsibilities, vendor dependencies and acceptance criteria before work begins.

  1. 01

    Map

    Document phone numbers, regions, call directions and transfer needs.

  2. 02

    Configure

    Set up the agreed Twilio SIP and voice resources.

  3. 03

    Connect

    Link the voice agent and approved human or system endpoints.

  4. 04

    Test

    Validate call quality, routing, security and failure handling.

Scope note

Twilio availability, number eligibility, regulatory requirements and charges vary by country. Zenith Systems is an independent implementation provider and is not presented as a Twilio partner.

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