I found a solution... I just has to enter an Answer line and now it behaves as I wanted. Here is the working code:
[inbound] exten => 1234567,1,Set(GROUP()=limit) exten => 1234567,2,GotoIf($[${GROUP_COUNT()}>2]?103) exten => 1234567,3,Dial(Zap/5&Zap/6,25,tT) exten => 1234567,4,Voicemail,u110 exten => 1234567,5,hangup exten => 1234567,103,Answer exten => 1234567,104,Playtones(busy) exten => 1234567,105,Wait(5) exten => 1234567,106,Hangup DB __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ --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