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.
Dear customer,
we provide Bd white open Cli With a Grate Preice .0290$
and renter all voip switch & vos3000 switch. if you need please contact sales@9telecom.us.
no more today
thanks for you.
Nancy John
Sales manager
9 Telecom Limited
sales@9te