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.
international voip wholesales:
mobile dialer & reseller for a2z country, a2z route, also voipswitch +mobile dialer+pc2phone all mode: cheap rate, contac me: ranju@live.com.bd or sales@rimi-telecom.net