It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
our company name AKCALL (pvt) ltd.we provide bd cli stm,iplc,igw and a2z termination good rate and good voice quilty.we btcl huge port if any body need plz contect
Read more