The feature, which is not redirecting calls to the voicemail, during the big traffic in peak hours. All calls will be put on waiting mode for the next available operator.
VASC Software and Media Company
VASC Software and Media Company (VASC) is a wholly owned subsidiary of Vietnam Post and Telecommunications (VNPT) which currently owns and controls the national network on behalf of the government, most of the access network, the largest international gat
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