Terry L Anderson wrote:
>
> Perhaps I wasn't clear enough. I certainly see the statements that 1xx
> responses may contain bodies. But I do NOT any longer see the implication
> that existance of the body terminates any local ringtone (which was explicit
> before). I know that a body can setup a media path for inband tones, but if
> the originating UAC initiated ringtone from a 180 that did NOT contain a
> body, is it still clear that a 183 with a body stops the locally generated
> tone?
This is pretty close to the "specify how to build a UI" border. SIP
conveys what is happening - estbalishment of sessions, progress codes,
etc. How the UI renders these, is its own choice. If an implementation
is dumb enough to think that playing local ringback while the session is
in progress is a sensible thing, well, what can we do.
>
> I am also curious about whether terminating an existing media stream (e.g.,
> 180 with SDP containing m line with 0 port after a 183 with media) should
> restart a local ringback tone.
Same as above; I dont think its our role to dictate UI.
-Jonathan R.
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
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dynamicsoft East Hanover, NJ 07936
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