Switchvox - How do you fix when a SIP provider denies calls because of the Call-ID having their IP in it?

By Merry Arpaia
1 min

On a rare occasion you may come across a provider who will not accept calls if the Call-ID information in the SIP invite has their own IP address in it.
For example: xxxxxxxxxxxxxxxx@<IPofProvider>

This is how Switchvox sends Invites by default and is compliant with section 8.1.1.3 of the SIP standard, RFC 3261, however if your provider is wanting to see the local address in the Call-ID information do the following:

  1. Go to Setup > VoIP Providers

  2. Modify your provider

  3. Go to the Call Connection tab

  4. Turn on "Use Local Address in From Header"

NOTE: Only set this to YES if your provider explicitly requests that you violate the SIP standard in this manner. If this is YES, Switchvox uses its own local IP address in the From header of requests.

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