RFC 3581 support in skype for business

Question

Hi,
I was wondering whether skype for business supports RFC 3581 (rport mechanism) or not? if yes, then how it can be configured?

P.S. The rport mechanism changes the SIP routing behavior so that responses can be received through a NAT even if private addresses are used in the SIP headers.

The SIP RFC specifies that responses to requests are sent back to the IP address seen in the IP header, but to the port seen in the SIP Via: - header. To achieve this in a multi-proxy environment, every proxy adds a received-parameter containing the source IP address of the received packet to the Via-Header of a SIP message it forwards.

When the rport-Parameter is added by the client to an outgoing SIP request, the receiving proxy also fills this parameter with the source port it sees in the received UDP header and uses it to route back the responses.

Answer 1

Hi @Mahdi Salmanzadeh

I was wondering whether skype for business supports RFC 3581 (rport mechanism) or not?

Sorry, i did npot find the official document shows how to configure it. According to this blog description, it seems Skype for Business could support RFC 3581. You could find it from the article's list.

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