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Connect your Vatel AI agents over SIP so you can use your own carrier or PBX. This walkthrough shows how to create and configure a SIP trunk.

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Create a SIP trunk

1

Choose a PBX

When creating the trunk, select a PBX type. The choice mainly affects the UI and some peripheral integrations, not core SIP behavior.
2

Configure inbound authentication

Set the inbound authentication strategy and provide the required parameters:
3

Configure outbound credentials

Choose whether outbound SIP INVITEs (and transfers) use credentials:The same outbound config is used for outbound calls and transfers.
4

Add agent assignments

Assign one or more agents to the trunk. Each agent assignment links an agent to the trunk and exposes SIP URIs reachable for that agent.Use these URIs in your PBX or carrier as the destination for calls you want handled by each agent.
Create a SIP trunk After the trunk is created and assignments are in place, point your PBX or carrier at the trunk’s address and use the assignment SIP URIs as the destination for calls you want handled by each agent.
Alternative number per assignment. For every assignment you can configure an alternative number. By default the SIP URI user part is the assignment ID (e.g. sip:(ID)@sip.vatel.ai). If you set an alternative number, that value is used as the user part instead (e.g. sip:5551234@sip.vatel.ai). This can help when your PBX expects a specific number or format in the SIP URI.