[SIPForum-discussion] Error 415 - SIP and Exchange Server 2007

[Fernando Pinheiro]

Hello.

I need to understand the source of my problem with SIP trunk and
Microsoft Exchange Server 2007 (Unified Messaging feature). I have a
PBX Aastra/Ericsson MX-ONE that receive an SIP response 415 -
Unsupported Media Type from Exchange UM Server.

The normal operation is, i think:

PBX > Exchange | INVITE sip:user at sipdomain,user=phone,transport=tcp;
PBX > Exchange | ACK sip:user at sipdomain,user=phone,transport=tcp;




-- 
Att,

Fernando