The service offered by telephone companies allowing creating the telephone numbers on the same line where the existing number is. The call tone for every number will be different from another. There is also an opportunity to program a custom ring tone for the incoming call.
Hi
I am shumon from Dhaka , my dalier is SHINETELL which one is btcl route if u r interested pls knock me price is good enough and attaractive.
Thanks
hamid
shinetell