[SIP Beyond VoIP] question about subscribe uris

Saúl Ibarra Corretgé saul at ag-projects.com
Thu May 2 23:30:27 CEST 2013

On May 2, 2013, at 10:50 PM, Iñaki Baz Castillo wrote:

> 2013/4/29 Juha Heinanen <jh at tutpro.com>:
>> SUBSCRIBE sip:jh+presence at test.tutpro.com
>> since that user does not exist, my presence server returns 404 no found.
>> where does it get userpart jh+presence?  is this + syntax specified in
>> some rfc?
> I'm a bit annoyed. Such a "+presence" does not exist in any RFC AFAIK.

Why? One is free to choose whatever URI he sees fit, and we chose +presence because it can actually help pinpoint issues as it's clearly visible what it is for. It doesn't have any routing related meaning, it's just a convention.

Saúl Ibarra Corretgé
AG Projects

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