SER/OpenSER can get around call forwarding/transfer problems. You just need to account for those SIP dialogue's that can be problematic, and bypass using the dispatcher module for those situations.
One thing to remember is to replicate usr-loc info that is cached in memory, otherwise load-balancing for INVITE's will fail if passed to a proxy that did not receive the REGISTER request for sending party. The standard t_replicate() function only supports replication between two SER/OpenSER proxies, so if you are looking to add in any more, you will need a more manual approach. OpenSER 1.1.0 actually offers the ability to operate completely out of a database, even for usr-loc, which could work for you. Other approaches for load balancing include DNS round-robin techniques, and separate software or hardware appliances dedicated to load distribution. I have successfully worked with Foundry ServerIron's, and Vovida's Open Source load-balancing proxy, in the past. Cheers, Adam -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Douglas Garstang Sent: 30 August 2006 04:05 To: Asterisk Users Mailing List - Non-Commercial Discussion; [email protected] Subject: RE: [asterisk-users] SER Dispatcher Load Balance How-To? That might not be a good idea. If you transfer or forward calls on your phones, you MUST make sure the transferred or forwarded call goes back to the same Asterisk box it was handled on. If you use the dispatcher, and load balance, there is no guarantee of that, and transfers and forwarding will break. Doug. -----Original Message----- From: Andy Chung (Power-All) [mailto:[EMAIL PROTECTED] Sent: Tue 8/29/2006 7:49 PM To: [email protected] Cc: Subject: [asterisk-users] SER Dispatcher Load Balance How-To? Hi all, I have three Asterisk servers behind a SER. I want to know how to configure the Dispatcher module of SER to achieve load balance for the Asterisk servers. I have visited http://www.openser.org/docs/modules/1.1.x/dispatcher.html, is there any web sites have more detail information on that? Thanks! Andy _______________________________________________ --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
