Rosa De Santis wrote: > Hello all. > > Please, I'd like to know if somebody can help me with this problem. > I have successfully configured a PBX with Asterisk 1.4 and a Digium analog > card with 4 ports. > > This PBX has a lot of incoming and outgoing calls, and works perfect in > general, but there are some extrange cases where an incoming call is bridget > with an outgoing call, and the caller that is calling TO the PBX can even > hear the dtmf tones of the caller that is calling OUT the PBX, and due the > high traffic this is happening a lot. > It seems that asterisk is taking the zap channel to call out in the exact > moment before it is marked as busy with the incoming call. > Please, is there any configuration to avoid this? > > Thanks a lot in advance. > Rosa.
The situation you're referring to is called glare. You'll find discussion of it in the archives and on voip-info.org. You need to make sure you are seizing lines for outgoing calls in the reverse order that they are used for incoming calls. Check out the G dialing option for Zaptel/DAHDI channels (under Dialing a Group section): http://www.voip-info.org/wiki/view/Asterisk+ZAP+channels If this doesn't work, your next best bet is to increase the number of lines you have. -Dave _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
