Now To Set Contact Username And From Username Idependently

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Finally, I figured out how our SBC does matches invites to registrations with the Contact header, but now I face another issue: how do I set the contact header of an invite different to the From header?

INVITE sip:called-id@URI SIP/2.0
Via: SIP/2.0/UDP IP:5060;branch=z9hG4bK495c70cc Max-Forwards: 70
From: "SBC TEST" <sip:callerID@IP>;tag=as2c330ac5
To: <sip:called_id@URI>
Contact: <sip:user-from-reg@IP:5060>
 

in my

[sip-provider]
type=peer
;fromuser=user-from-reg
;username=user-from-reg secret=hidden host=URI
outboundproxy=IP of Proxy
 

As soon as I set either fromuser or username, this also overwrites the callerID and then of course the CallerID which should be sent over the trunk is not correct anymore.

And of course because the CallerID can be different for each call (it’s a trunk) I cannot set it with CallerID= in the peer definition.

Am I missing something?

One thought on - Now To Set Contact Username And From Username Idependently

  • Maybe you can try “defaultuser”. I’m not sure it will be used in the
    “Contact” header, but it will be the one used for authentication.

    Regards