[sr-dev] GRUU and publish registration status

[Olle E. Johansson]

30 aug 2012 kl. 10:22 skrev Iñaki Baz Castillo <ibc at aliax.net>:

> 2012/8/30 Olle E. Johansson <oej at edvina.net>:
>> Hi!
>> 
>> Since we've learned that GRUU's are more or less semi-automatic I have of course a few more questions:
>> 
>> - Is the usrloc module aware that a specific contact is using GRUU's
> 
> AFAIK that's not "needed". When a request arrives to the proxy having
> ;gr param in the RURI, the proxy extracts the gr value, "decodes" it
> somehow (not need to have such a mapping in a DB) and gets the
> associated binding, so just such a binding would be retrieved form
> usrloc table when calling lookup().
That means that one - knowing the algorithm - can reach all contacts directly, regardless
if they have a gruu or not. Or?

> 
> 
>> - If so, is that reachable information for the pua-regloc to publish the gruu's?
> 
> Note that such a feature would require implementing RFC 5628:
> 
> http://tools.ietf.org/html/rfc5628
> 
> "Registration Event Package Extension for SIP
>  Globally Routable User Agent URIs (GRUUs)"

Yes. But to make it possible and to make it possible to restart kamailio without loosing information, I think we have no other option but to store a gruu flag in usrloc.

Of course, I might be totally wrong :-)

/O
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