SIP trunk checklist

  1. Name the transport the peer documents.
  2. Name the Request-URI and whether DNS must resolve it.
  3. Compare the offer codecs with the answer.
  4. Check c= and the RTP port with a capture.
  5. Record the emergency test number the provider gave you. This sheet is not legal advice.

Confirm before relying on a vendor default that is not printed here.

Sources and go deeper

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