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.
AVIS was founded by professionals from the Telecom & IT industry with the sole objective of providing Technology Consulting and end-to-end solutions to cater to the upcoming BPO sector. Our Portfolio encompasses Voice, E-mail & Chat Solutions for BPO & Se
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