[Asterisk-Users] Multi Asterisk Server Transfers

[Erik Espinoza]

Sounds like you need a SIP Proxy, which just relays calls to the
destination, rather than Asterisk which handles all aspects of a call.

I'd recommend Sip Express Router, http://www.iptel.org/


On Thu, 27 Jan 2005 12:58:56 +1100, Mike Sander
<mike at corporatebankinginternational.com> wrote:
> Hi,
> 
> We are in the business of setting up * servers for businesses, attached via
> IAX trunks to our VoIP provider (also using *).
> 
> I have a client with a head office * server, who wants a number of remote
> offices, with just 1 SIP connection to each. I can arrange this no probs
> with our providers, but there are issues with transfer.
> 
> I don't want the remote offices making their direct SIP connection to the
> head office, because bandwidth is limited and then for them to make an
> outgoing call, the head office has both an incoming and outgoing connection
> - or double the bandwidth. This is the same for an incoming call to head
> office that gets transferred to the remote, the call stays with the head
> office * server, and the server makes another outgoing call to the remote
> office. All these calls are free, but use double the bandwidth.
> 
> The question:
> 
> The remote offices can make direct SIP connections to our provider. If the
> head office * transfers a call, then the server releases the call entirely
> back to the providers * server and calls from there.
> 
> I.E. call in to head office from PSTN through the provider. Call gets
> transferred to the remote office. Head office could then unplug/burn/blowup
> their asterisk server without disrupting the call between the remote office
> and the PSTN network.
> 
> Is this possible? Companies with multiple * servers in many remote office,
> surely have this system, to conserve bandwidth? How is the transfer made?
> Mostly we are using X-PRO systems/Grandstream, with the Asterisk at home basic
> release.
> 
> Thanks
> Mike
> 
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