Re: draft-ietf-sip-199-07: 199 response and local ringtone generation

 
Hi,
 
I can add that example to chapter 4.2, if nobody objects.
 
Regards,
 
Christer


________________________________

	From: Hans Erik van Elburg [mailto:[email protected]] 
	Sent: 9. huhtikuuta 2009 14:18
	To: SIP List; Christer Holmberg
	Subject: draft-ietf-sip-199-07: 199 response and local ringtone
generation
	
	
	I was thinking that 199 response is also helpful for a UAC to be
able to decide when local ringing tone generation can be started again,
when it was suppressed before due to arriving early media which was
associated with a now terminated early dialog.
	
	To highlight this I propose the following example to be added to
section 4.2. Examples of policy procedures:
	"2. UAC ring tone generation - when a UAC receives a 180
response, it may choose to generate a local ringing tone. If early media
is received, the UAC may stop the local ringback tone generation and
play the incoming early media packets. If a 199 response is received on
the early dialog associated with the early media, and the UAC has
previously received a 180 response for another early dialog, it can
start to generate local ringback tone again. Having knowledge that the
early dialog associated with early media has been terminated, the UAC
can also start generating local ringback tone if a 180 is received on
another early dialog after the early dialog has been terminated."
	
	Best Regards,
	/Hans Erik van Elburg

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