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Re: [Sip] Warning header

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 10 March 2011 11:22 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: isshed <isshed.sip@gmail.com>, "sip@ietf.org" <sip@ietf.org>, sip-implementors <sip-implementors@lists.cs.columbia.edu>
Date: Thu, 10 Mar 2011 12:23:27 +0100
Thread-Topic: [Sip] Warning header
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Subject: Re: [Sip] Warning header
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Hi,
 
Per section 20.43 of RFC 3261, 306 seems like a good value.
 
 "306 Attribute not understood: One or more of the media attributes
      in the session description are not supported."

Note that it is not a SIP response code, but a code supposed to give additional information about the response.
 
Regards,
 
Christer
 
 
 
 


________________________________

	From: sip-bounces@ietf.org [mailto:sip-bounces@ietf.org] On Behalf Of isshed
	Sent: 10. maaliskuuta 2011 13:17
	To: sip@ietf.org; sip-implementors
	Subject: [Sip] Warning header
	
	
	Hi All, 
	 
	If an initial INVITE from an endpoint offer contains the sdp as follows.
	 
	m=audio 15190 RTP/AVP 100 101\r\n
	a=fmtp:18 annexb=yes\r\n
	a=fmtp:101 0-15\r\n
	a=rtpmap:100 UNACCEPTABLECODEC/8000\r\n
	a=sendrecv
	 
	the terminating endpoint returns an error response 488 with a warning header as follows.
	 
	Warning: 306 132.177.120.67:5060 "Attribute not understood"
	 
	Is 306 is correct response?
	 
	Thanks,

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