<div id="mb_0">'lo,<br>
<br>
A provider sets up an Asterisk box in order to service the needs of a
small number of customers. The provider issues SIP handsets and the
users register with <a href="http://sip.telco.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">sip.telco.com</a><br>
<br>
Thanks to the selection of a brilliant family of technologies,
including SIP and Asterisk, the <a href="http://telco.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">telco.com</a> company grows and grows.
Eventually, beyond the point that they can really hold all of the
customer SIP registrations on one server. So, to improve scalability
and redundancy, the provider installs four Asterisk servers to handle
registrations. <br>
<br>
In a one server SIP environment, the dialplan is easy to setup<br>
<br>
exten => 1234,1,Dial(SIP/user1234,20,r)<br>
<br>
.. and if user1234 is registered, user1234 is dialed. But what about
this multi-server environment? If the same extensions.conf line
appears on all four asterisk servers, but the user is only registered
to <a href="http://sip2.telco.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">sip2.telco.com</a>, how can the administrator make a
Dial(SIP/user1234,20,r) on <a href="http://sip3.telco.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">sip3.telco.com</a> go to the right user?<br>
<br>
Does a type of 'confederated sip registrations' system exist in Asterisk 1.4?<br>
<br>
Best regards,<br>
SJJD</div>