CallExchange provides companies looking to enter the retail telecommunications business a turnkey solution to rapidly and cheaply deploy prepaid and postpaid calling cards and accounts, as well as VoIP softphones and customer premise equipment.
CallExchange provides companies looking to enter the retail telecommunications business a turnkey solution to rapidly and cheaply deploy prepaid and postpaid calling cards and accounts, as well as VoIP softphones and customer premise equipment.
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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