Problem is, IMHO, (no disrespect to SER/Kamailio or community), its a case of the best application for the job, SER is a proxy/registrar not really designed for queuing calls. The agents don't all have to been on a single server - and if you did want to put them all on a single server - boy I wouldn't recommend that anyway. If you spread the calls and Spread the agents across multiple servers and use AGI for example on Asterisk to link the logins/events you're in much better architectural shape. Also make sure where you can off load the media once customer are talking to agents. I'm sure something like ViciDial (http://www.vicidial.com/) would suite the job much better, or more specifically multiple servers containing ViciDial. 1000 agents is not a small under taking. If you want to do screen-pops and CRM integration - that's also separate web servers to front the events from the queues and agents. Neill....;o) Aeonvista Ltd Opening Up New Ideas On 1 July 2010 08:19, Trung Anh <dangtrunganh(a)gmail.com> wrote: