[OpenSIPS-Devel] [opensips] Topology_Hiding - Preserving Non-Transport Params (#301)

[dexteruk]

Hi
I have tested the new function added to the topology_hiding
I added the following to the dialog settings in the opensips.cfg
modparam("dialog", "th_passed_contact_params", "confid;+com.avistar.confapi.v1;isfocus")

As you can see below in the contact the information is present

Contact: <sip:108.60.100.184:5060;transport=tcp;confid=3FD99511F9EB238C3FE825FF752847D1>;+com.avistar.confapi.v1;isfocus.

After the topology hiding you see that the confid has now been passed and is fine, but the SIP conferencing UA is still not working at it requires the last two params that have been sent

Contact: <sip:64.62.166.180;transport=tcp;did=481.0964f035;confid=3FD99511F9EB238C3FE825FF752847D1>.

According to the RFC4579 the isfocus is a valid param, could modify the fix to allow these other forms of params to be passed if the exist ie ;+com.avistar.confapi.v1;isfocus

http://tools.ietf.org/html/rfc4579

Thanks

Craig

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https://github.com/OpenSIPS/opensips/issues/301#issuecomment-52598820
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