RE: [Asterisk-Users] Asterisk as a SIP/H.323 Router

[Abdul Hakeem]

Title: Message

Hi, Extensions are different from H323 endpoints. My understanding of Cisco routers and Sip/H323 dictates that there should be a Proxy when routing from 1 Sip/H323 gateway to another. We have tried it before and the best we ever achieved is a one-way audio in the most minimalist form.. i.e. Cisco A---->Cisco B------Cisco C. In your configs below, you will be routing to Gateways not endpoints, and that's where the problem is. Perhaps, someone else has tried this with better luck, but I doubt it. Cheers, Abdul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nir Simionovich Sent: Monday, March 17, 2003 3:33 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] Asterisk as a SIP/H.323 Router Ok,     Lets say that I have something like the following:     On the Asterisk box I have the following definitions in sip.conf:   [locationA] type=friend host=router.locationA.foobar.com defaultip=1.1.1.2 context=router   [locationB1] type=friend host=router.locationB1.foobar.com defaultip=1.1.2.2 context=router   [locationB2] type=friend host=router.locationB2.foobar.com defaultip=1.1.2.3 context=router   Now, in extensions.conf I would have something with the following logic:   [router] ; ; We start with what to do when a call first comes in. ; exten => s,1,Wait,1 exten => s,2,[AGI program that checks the originator and routes according to pre-defined settings]     Again, this is just a concept, not the actual configuration. But in theory, I don't a reason why this can't work.   Nir Simionovich     ----- Original Message ----- From: Abdul Hakeem To: [EMAIL PROTECTED] Sent: Monday, March 17, 2003 4:19 PM Subject: RE: [Asterisk-Users] Asterisk as a SIP/H.323 Router Hi, I took a look at the architecture. The way the Cisco boxes will work if Asterisk in the middle is a Proxy, but it's not. You cannot re-direct an incoming Voip call from one gateway to another, only a proxy can do that. The Asterisk in this mode can only terminate the calls via the PSTN. If it attempts to re-direct the call to the Cisco, it has to be via it's PRI interface (i.e. Cisco PRI0-3 is connected to the PRI interface of the Asterisk Location B. Cheers, Abdul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nir Simionovich Sent: Monday, March 17, 2003 10:08 AM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Asterisk as a SIP/H.323 Router Hi All,   I've been spending the last month experimenting with Asterisk, and I must say that all results point to a very positive outcome.   Now, i've been asked the following question: Is it possible to put an Asterisk box between 2 Cisco routers or other SIP complianet equiment, then routing SIP/H.323 calls between the two routers?     Here's a drawing that will explain:         +--------------+                   +----------+                 +--------------+  PRI  |              |1.1.1.2     1.1.1.3|          |1.1.2.1   1.1.2.2|              |  ---->+ Cisco Router +-------------------+ Asterisk +--------+--------+ Cisco Router +--> PRI0-3       | Location A   |                   |Location B|        |        |              |       +--------------+                   +----------+        |        +--------------+                                                              |                                                              |        +--------------+                                                              | 1.1.2.3|              |                                                              +--------+ Cisco Router +--> PRI4-7                                                                       |              |                                                                       +--------------+   The question here is this:   A phone call is is made to the router in location A. The Cisco router routes the call via SIP to the Asterisk Box at Location B. According to a set of rules on the Asterisk box, the box would route the SIP/H.323 to one of the the other Cisco boxes, in order to terminate the call.   What do you think, is this possible?   Nir Simionovich   P.S.   Excuse me for the poor ASCII art, I didn't want to attach a Visio or a PDF file.