[asterisk-users] CHANNEL STATUS of sip and iax devices

[Reynaldo Baquerizo]

Hi
I've seen the docs about agi commands, CHANNEL STATUS especifically.
The format of channelname is supposed to be one of the show channel's 
output , Zap/1-1 is fine but for a sip or iax device, it's attached an 
id number to the call. how can i verify it then? and if the device is a 
multiline phone, i'd like to know if they have an active phone call at 
least.