Requist For Assistance from Digium Technical Support

Dear Sir,
I want to connect my main office and my 3 remote offices through IP PABX. Tell me i want a cheepar solution insted of Channel Bank or Routers. I need 24 FXS ports for Extensions in each office and 8 Ports FXO in each office. I want to use analoge telephone set insted of IP Phones. Tell me how i can make a cheep solution through use of digium cards. Tell me complete Solution that which type of cards i have need for FXS ports and for FSO ports. I live in Pakistan tell me from where i can buy in my nearest location.
I am Waiting your earliest Reply of my massage.


Ali Akbar Khan