Re: [Sip] SIPit 20 survey summary

[jh at tutpro.com (Juha Heinanen)]

Jeroen van Bemmel writes:

 > Especially for the use case of emergency calls, would it not be wise to 
 > select a much more simple approach/syntax, e.g.:
 > Emergency-Location: lat=x; lon=y
 > 
 > So no XML, no mime/multipart, as simple as possible (no complex semantics, 
 > usage-rules etc), something to reduce the barrier of 
 > implementation/deployment, and to reduce the risk for interop issues?

i fully agree with this.  we should follow KISS principle here.  it is
highly unlikely that sip ua vendors will even TRY implement such a
complex protocol.  

another reason why it will not get implemented is that sip uas don't
know where they are located.  gps does not work well indoors and mobile
operators at least here have refused to make public coordinates of their
base stations.

-- juha


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