I use IP Kall to forward my missed cell phone calls to. This way, if my phone is off, or out of a service area, calls will go to my * box. Concurrently, all incoming calls to my * box cause it to dial my local extensions at home, my extension at work, and my cell phone via NuFone.
Problem: A loop can be created if my cell phone is not on. Say a call comes into my * box, it uses NuFone to call my cell, my cell forwards the call to IP Kall, IP Kall to my * box...... You see. My solution, and I post this here because I am looking for comments/improvements to it: When a call comes into my * box, and my * box dials my cell via NuFone, I will SetGlobalVar ZAPCALLEDTIME to the ${EPOCH}. Then, whenever a call comes into my * box from IP Kall (aka, any call forwarded from my cell to my IP Kall), I will take the difference between the current ${EPOCH} and ${ZAPCALLEDTIME}, compare it to the value 10 (thinking that if it takes less than 10 seconds from the time I forward a call to my cell, and a forwarded cell call comes into my * box, then it must be the beginnings of a loop), and if less than 10 to send the call on to be hungup, or else process it normally. Thus, I submit the beginning of my [inbound-ipkall] context from my extensions.conf: [inbound-ipkall] Exten => _X.,1,GotoIf($[${ZAPCALLEDTIME} = ""]?3) ; This is to see check that ZAPCALLEDTIME exists at all - I am not sure I do it correctly here. Exten => _X.,2,GotoIf($[${EPOCH} - ${ZAPCALLEDTIME} < 10]?1000) ; This determines whether a loop is starting or not. . . . Exten => _X.,1000,Hangup() ; Would it be better to do a softhangup of my outgoing NuFone call? Not sure how to do that... Sincerely, Brent A. Torrenga [EMAIL PROTECTED] Torrenga Engineering, Inc. 907 Ridge Road Munster, Indiana 46321-1771 219.836.8918x325 Voice 219.836.1138 Facsimile www.torrenga.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