SIP Trunks

Create an outbound SIP trunk (REGISTER or static peering)

Creates a typed SIP trunk. For type: "sip_register", VoiceBlender begins REGISTERing to the supplied registrar URI with digest auth, refreshes before expiry, and routes inbound INVITEs that arrive on that peer's socket plus outbound INVITEs whose from matches the AOR through the trunk. Set sip_register.outbound_proxy to send both the REGISTER and those INVITEs via a next-hop proxy instead of straight at the registrar; the Request-URI and digest authentication still target registrar_uri. It defaults to SIP_OUTBOUND_PROXY and is resolved at creation time, so the trunk snapshot reports the hop actually in effect. For type: "ip_ip", returns 501 (reserved, not yet implemented).

post/sip/trunks

Request body

type'sip_register' | 'ip_ip' required

Trunk type discriminator. Only sip_register is implemented today; ip_ip is reserved and returns 501.

app_idstring

Application identifier carried through to every event emitted by this trunk.

Response

Trunk accepted; REGISTER runs asynchronously

idstring required

typestring required

statusstring required

Changes

Changed in 4 of the 67 revisions of this API.13

Aug 18, 2026126565efa2b41See the full diff
- ○
  added the new optional request property sip_register/allOf[SIPRegisterTrunkSpec]/tls_insecure_skip_verify
  new-optional-request-property
Aug 17, 20264efc843fe56f1See the full diff
- ○
  added the new optional request property sip_register/allOf[SIPRegisterTrunkSpec]/outbound_proxy
  new-optional-request-property
Jun 24, 2026558a917df2b21See the full diff
- ○
  endpoint added
  endpoint-added
Mar 26, 2026d09c97c6ca8c1See the full diff
- ▲
  api path removed without deprecation
  api-path-removed-without-deprecation
This revision also has 40 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

Full history