GSM VoIP Solutions
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.
Developed by Edgewater Networks EdgeMarc 250 Series Enterprise Session Border Controller is providing support for SIP trunking and hosted PBX Services.
E Resource 21 Pte Ltd
E-Resource 21 started its business operation in 1st August 2000 with its principal business engaged mainly in the Civil Engineering Construction and related business including Employment Agency for the local and oversea construction business. E-Resource 2
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