we need basically bandwith optimization. in client end they have termination gateways, each gateway can carry 30 simultaneous calls. and all gateway under DHCP network . we take a server which run in static IP . all client should send calls to server IP from his SIP server and we need to create separate account for each gateway . and calls should send to specific termination .
call should pass with sip / iax2 , g729 or g723. in client end we want to setup asterisk module which can convert calls from sip / IAx to sip and pass the calls to gateway .
01. asterisk or SBO server. which receive calls from many sip server.
02. asterisk./SBO transfer calls to local PC or router .
03. in router / pc have a module which can route calls to LAN IP .
04. in LAN IP there have a termination gateway . so calls can pass normal .
the thing is , u need to work on asterisk/ SBO server and client end PC/ router.
for your understand . here i give you a web site . as they provide .. we need same solution,
[url removed, login to view]
check the site . we need same solution.
waiting for your update.
5 freelancers are bidding on average $659 for this job
Asterisk expert here..We are new to freelancer.com so we dont have reviews here but you can check our reviews in elance, odesk and scriptlance. Please check your PMB..