Host part only in Contact message

General questions Configuration
1

Hi all

I am trying to interconnect with a mobile operator that requires only the host part URI in a SIP contact message.

if I set the contact in message to false, the SIP contact returns:
sip:gw+FREESWITCH@192.168.33.1:5060;transport=udp;gw=FREESWITCH

what you should/expect to be receiving:
sip:192.168.33.1:5060;transport=udp;gw=FREESWITCH

any ideas would be gratefully accepted.

2

Not sure with FS but it seems possible with SBC. You can reach out to us for further discussion and see we can do that.

3

Good morning @smrdoshi

I have sorted out the malformed SIP header, but editing the source of FS. (freeswitch-1.10.10.-release)
endpoints/mod_sofia/sofia.c
inside the calls to check if extension_in_contact is set.
around Line 4201 in
ā€“ format = strchr(sipip, ā€˜:ā€™) ? ā€œsip:gw+%s@[%s]:%d%s%sā€ : ā€œsip:gw+%s@%s:%d%s%sā€;
++ format = strchr(sipip, ā€˜:ā€™) ? ā€œsip:[%s]:%d%sā€ : ā€œsip:%s:%d%sā€;

Now my interconnect to the mobile operator has passed all the integration tests and we are going live, without the need for an additional SBC.

I hope this helps.

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