[Asterisk-Users] differentiating busy & not connected

[Philipp von Klitzing]

Hi!

> How can I determine whether a sip device is busy (channel unavailable),
> or it is not registered/connected?  

For the latter try "database show sip" or DBGet(...) respectively. Won't 
work with RealTime in Head though, I assume. ;->

Busy: You can always employ CheckGroup() and the like, although that 
gives you only the Asterisk view of things, not the SIP UAs point of 
view. Maybe sipsak and a custom SIP message can help, but that's of 
course outside of Asterisk.

Philipp