If is a bandwidth cost issue you would better only move RTP media close to 
those gateways, is much easier. 

Adrian

On May 25, 2010, at 12:05 PM, Bruce Borrett wrote:

> Hi
> 
> The purpose/goal of this setup is not load balancing or failover. We are 
> providing pstn termination, so we want to hand calls off to the pstn in each 
> geographic region to reduce the amount of long distance charges... Leased 
> lines are also charged by the distance here, so it would also help to have 
> all clients connecting to a local server.
> 
> So to paint a picture, we have region 1 and 2. Each region has a pop with an 
> opensips server and a pstn gateway. Clients from each region register to 
> their local server. 
> 
> When client in region 1 wants to call pstn number in region 2, server 1 needs 
> to relay call to server 2 which would hand call to the pstn gateway there, 
> and call would be charged as local. In this case we can just use a pstn route 
> which checks for certain prefixes and forwards to the correct server.
> 
> If a pstn user in region 2 calls one of our clients registered to server 1, 
> then server 2 either needs to know that the client is registered with server 
> 1 and relay the call to server 1, or server 2 needs to also have the 
> registration in its location table, and send the call straight to the client. 
> The same will apply when a user registered to server 1 wants to call a user 
> registered to server 2. The solutions I have heard of or thought of for this 
> case are both servers using same mysql database, this will add huge latency 
> to all lookups for either one or both of the servers, or my idea of 
> replicating the database between the 2 servers, apparently this wont work 
> though. Another suggestion I got was to replicate the registration from one 
> server to another...
> 
> Any other ideas? Feel free to tell me I have no idea what Im doing, I need to 
> know whether Im on the right path.
> 
> Regards,
> Bruce
> 
> 
> 
> From: osiris123d <[email protected]>
> To: [email protected]
> Sent: Mon, 24 May, 2010 20:36:07
> Subject: Re: [OpenSIPS-Users] MySQL and multiple geographic servers
> 
> 
> Will your clients be behind a firewall?  If so you would need to worry about
> the natted devices not being able to recieve SIP messages from the secondary
> SIP Proxy if the secondard ever needed to send SIP messages (example: Proxy
> Primary is down, so Proxy Secondary takes over)
> -- 
> View this message in context: 
> http://opensips-open-sip-server.1449251.n2.nabble.com/MySQL-and-multiple-geographic-servers-tp5095071p5095184.html
> Sent from the OpenSIPS - Users mailing list archive at Nabble.com.
> 
> _______________________________________________
> Users mailing list
> [email protected]
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> 
> _______________________________________________
> Users mailing list
> [email protected]
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

_______________________________________________
Users mailing list
[email protected]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users

Reply via email to