Answers in-line... Hope this helps! Jason
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alan Chandler Sent: Wednesday, February 28, 2007 3:46 PM To: [email protected] Subject: [asterisk-users] Newbie Planning Help <snip> ------ ------- a) to what extent Asterisk can manage everything necessary to allow machines A and B to communicate if they were SIP phones. Is it possible to go for a setup with the firewalls/NAT devices as shown - Asterisk can register and manage both A & B even though they are behind NAT devices. NAT=yes is required, of course, for Asterisk and the endpoint to properly communicate. You probably know but just in case, SIP endpoints maintain a signaling channel through port 5060. When a call comes in, they open a RTP media stream somewhere between port 10000 and port 20000. NAT can sometimes mess this up and it usually shows itself as one-way audio. IAX endpoints send signaling and media over the same port so there is less risk in NAT problems. b) if I go with IAX softphones, does communication between A and B have to go through S, or can Asterisk "hand-off" the IAX conversation so that A and B talk directly. - I do not believe IAX allows for a hand-off between the two endpoints. Most people don't want the hand-off anyway as it prevents the parties from using in-call feature codes. This is why most everyone sets canreinvite=no for SIP endpoints. c) the example documentation shows seperate entries in iax.conf for incoming and outgoing calls. In my case (assuming IAX softphones) would I just have entries for A and B of type friend? - yes. 'friend' is you friend for IAX softphones! Can someone give me some advice about how to proceed. Thanks -- Alan Chandler http://www.chandlerfamily.org.uk _______________________________________________ --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
