We have an asterisk frontend terminating all our SIP phones to, and an asterisk backend with a wildcard PRI card in it connecting to the PTSN. The frontend handles 99% of dialplan logic and just hands off anything outgoing to the backend via IAX2, wh..
If I put two spans worth of channels, say 1-23 from span 1 and 25-47 in span 2, in one group, but only span 2 was showing OK and the other was down / showing a RED alarm, would asterisk automatically skip over trying to use channels 1-23 when doing outbo..
Ive always used dahdi-genconf to just create the dahdi-channels.conf and since our PRI is fairly simple (just dump all the channels into one group) it works with dialing with dahdi/g1/(number). Im trying to understand the file though for my own reference..