If you are using sipxbridge, the media relays through sipxecs (media relay). ============================ Tony Graziano, Manager Telephone: 434.984.8430 Fax: 434.984.8431
Email: [email protected] LAN/Telephony/Security and Control Systems Helpdesk: Telephone: 434.984.8426 Fax: 434.984.8427 Helpdesk Contract Customers: http://www.myitdepartment.net/gethelp/ ----- Original Message ----- From: [email protected] <[email protected]> To: [email protected] <[email protected]> Sent: Sat Nov 28 09:47:13 2009 Subject: [sipx-users] Basic question that's been bothering me... I preface this with the fact that I am coming from the Asterisk world where things are "different"... ;) So I am getting my head about all these various components and one thing sort of puzzles me, and that is the media path. Let's say I have an sipXecs server sitting in a datacenter somewhere. Across town I have a handful of Polycom handsets in an office who has a business grade cable modem of somesuch. The Polycoms are configured to register with their sipXecs PBX in my datacenter over the public Internet. Now, in the Asterisk world, all the RTP media would get relayed through Asterisk and sent to the remote office. I understand this is different in the sipXecs world (e.g. the real world) where the SIP signaling would occur "out of band" with the RTP stream. Inside the office call: My assumption is that based on name resolution of the URI ([email protected], [email protected]) the phones know who/what to send the media to. (e.g. in the office, on the same LAN, it would get an internal IP and send the call from [email protected] to [email protected]). This is why internal DNS is critical. But how does this work when placing/receiving calls from an ITSP? Call comes in to [email protected] from the ITSP to sipXecs, the appropriate device is notified of an incoming call and the user answers... Here is where my understanding just falls apart. At this stage, I have no idea how the RTP stream "finds its way" to the device... sipxrelay? Doesn't that sort of introduce a single point of failure? Or maybe I just am completely wrong about all my above assumptions... ? Kudos to whomever can help me decipher this... -- Robert _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/ _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
