[Serusers] SIP client and serweb

[Arnd Vehling]

Hi,

Daniel-Constantin Mierla wrote:
> 
> SER does not manage buddy lists or so. This is not related to session
> initiation protocol and I am not aware of any SIP client supporting such
> extension.

Just curious:

Is there any way to find out (using SIP protocol) if a certain SIP-Contact
is registered (at a specified server?) _without_ sending an INVITE to the
sip contact?

If yes, its easy to write a "sip-cu" app.

Alternativley one could send INVITE/CANCEL, but thats kind of ugly.

regards,

  Arnd