Configurations of GSM/VoIP networks allow the service providers to avoid the local Wired Public Switched Network (PSTN) in communication with a GMS mobile handset. As a result, the high rates charged by telephone companies are avoided.
Written by Administrator
Tuesday, 05 May 2012 16:53
Last Updated on Tuesday, 05 May 2012 17:18
Carrier Voice (UK) global presence comprises a network of 7offices in 19 countries across the Asia Pacific, Middle East, Europe and USA. Each global office