Short answer: a single group should be fine. Long answer: It depends. Your Dial() command determines the order in which Asterisk plucks channels from your PRI. Most north american system call inbound channel 1 first, then 2, etc. It makes sense, then for you to take channels from the topmost first, for outbound calls. This is dictacted by how you format your Dial() command:
g: select the lowest-numbered non-busy Zap channel (aka. ascending sequential hunt group). G: select the highest-numbered non-busy Zap channel (aka. descending sequential hunt group). r: use a round-robin search, starting at the next highest channel than last time (aka. ascending rotary hunt group). R: use a round-robin search, starting at the next lowest channel than last time (aka. descending rotary hunt group). (from voip-info.org) So, a dial command like: exten => 1,Dial(Zap/g0/5551212) would take the channel from the bottom of your group. This may have bearing on your situation. However, from what you are descibing, this seems to be a symptom of a larger problem, that of Asterisk not correctly hanging up the zap channel and that has nothing to do with channel selection preferences. Anything weird on your CLI during this period? -----Original Message----- From: Rob Schall [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 19, 2006 3:03 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [asterisk-users] T1 Pri Question When setting up the zaptel, etc.... Is it necessary to have a seperate group for incoming and one for outgoing calls? Either way, does asterisk always know which channels are open, and does it always clear up a channel for use once a call completes? Reason for asking... After dialing into our system over a few DID numbers, I noticed you can only call 2-3 times before getting a busy signal. However we have a full 24 channel PRI. During this time, you are more than able to make outgoing calls over that same PRI. After hanging up on the incoming call, (outside into the PRI), it can take upto a few minutes to clear up for the next person to call in. Any thoughts, Rob _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users