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Telephony

Telephony overview

How phone calls reach a Tried agent, which carriers and SIP setups are supported, and where to configure routing, caller ID, recordings and security.

Every phone call to or from a Tried agent runs over SIP into LiveKit, where the agent worker joins the call. A number gets there in one of two ways:

  • Bought through Tried. The API buys the number from Telnyx (or Twilio) and connects it to LiveKit SIP for you. Buying is API only: see Get a phone number. Needs keys
  • Connected over your own SIP trunk. You keep the number with your carrier or PBX and point it at Tried. In the dashboard this is Connect via SIP trunking on the Phone Numbers page.
The Connect number via SIP trunking dialog with termination URI, transport and media encryption

Connect a number#

Custom telephony and SIP trunkingConnect numbers from any carrier or PBX and test the connection.TwilioUse your own Twilio Elastic SIP trunk.TelnyxHow numbers bought through Tried are wired, plus SMS and number reputation.Contact centre platforms and PBXsVonage, Avaya, Genesys Cloud, Five9 and Amazon Connect.Register callLet your PBX pick the agent per call with a one-time SIP URI.

Control calls#

Call routingWhich agent and version handles a call, busy handling and SIP-level transfers.SIP headersRead inbound headers as dynamic variables and send your own on outbound calls.Caller ID and trustSTIR/SHAKEN, caller names, branded caller ID and verified numbers.International callingNumbers outside Australia and per-number country controls.Call recordingsMixed and dual-channel recordings, storage and signed URLs.SIP securityAllowlists, credentials, encryption and the infrastructure steps.