[Asterisk-Users] "Registered SIP '202' ... expires 1800". Why does it expire

[Bob Goddard]

On Friday 09 Sep 2005 18:10, Tony Hoyle wrote:
> Olle E. Johansson wrote:
> > SIP phones need to re-register every once in a while to tell the server
> > where it can be reached. If you have a soft phone on a laptop that you
> > move from network to network - home, office, airport, Barnes & Noble etc
> > - you want to be reached on the IP address you use there. SIP
> > registration keeps the server up-to-date with your hectic life :-)
>
> Which is kinda annoying because grandstreams (at least 1.0.5.23 firmware
> anyway) don't do that...  I have to powercycle the one on my desk once
> an hour if I want it to ring on incoming calls otherwise asterisk
> 'forgets' about it (the cisco in the other room seems to be fine).

There is a bug in the BT100 phones where unanswered calls across
registration periods will cause the BT100 to stop registering.
It is present even in the latest released betas. Grandstream
know about it, but are being extremely clueless.


B