Outgoing Invite Add Contact with sip instance urn uuid header

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Kunal Bhattacharjee

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Dec 23, 2024, 4:11:37 AM12/23/24

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Hi there,

I wanted to inform you that how to add it to baresip code for outgoing invite with contact for sip instance urn uuid header for the below mentioned in before and after?

Before :-

INVITE sip:123@[9905:909:9990::9991]:4086;transport=UDP;user=phone SIP/2.0

...

Contact: <sip:123@[9905:909:9990::9991]:4086>

...

After :-

INVITE sip:123@[9905:909:9990::9991]:4086;transport=UDP;user=phone SIP/2.0

...

Contact: <sip:123@[9905:909:9990::9991]:4086>;+sip.instance="<urn:uuid:AAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEEEE>"