Change "Content-Type:multipart/mixed" for SIP calls on cme
I have a CME on a Cisco 2821 with IOS 12.4(4)XC4. I have problem with a sip provider when I try to make calls to a number that is moved temporality. When I call to 1203 ext. this call to another number,for example.
My SIP ip telephony provider tell me that my cisco CME is sending on the SIP message a "Content-Type: multipart/mixed" instead of "Content-Type: application/sdp" and for this reason the call is not ok.
The question is: Can I change the sip format message on my cisco CME and put "Content-Type: application/sdp" instead of "Content-Type: multipart/mixed"? I need to make this because my SIP provider tell me that his SIP server don´t support for "Content-Type: multipart/mixed" however there support for "Content-Type: application/sdp".
I call to 1203 extension and it´s moved temporality to 936923652.
Re: Change "Content-Type:multipart/mixed" for SIP calls on cme
Thanks for your quickly answer asandborgh! Great answer!
Do you think that is is the only way to make the change? I need to upgrade my IOS and reconfigure the CME to add sip-profiles. In order to solve the problem do you think that I need to setup on sip-profile "request" or "response"?
This is the flow: I make a call to 1203 then first I make an INVITE to 1203@... and after the sip server show a 302 SIP message "Moved temporarily" and after we can see "Content-Type. multipart/mixed" on the SIP message. You can see this on the attachment.
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