Blacklist
The blacklist represents itself a list or register of entities which are denied privileges, service, mobility, access and admission due to these or other reasons. This function blocks all connections from the subscribers who are in the list.
For one time advertising promotions or typical requests it is easier to use services of the outsourced call center. Main advantage of such a service is that the company who rents it is free from the necessity of keeping the operators and organizing their work flow.
Shenzhen RealTone Technologies Inc.,
Real Tone Technologies Co., Ltd is a professional manufacturer of innovative VoIP equipments and unified network communication solutions. We offers a full line of VoIP products including All in one IP PBX phone system, VoIP gateways, E1/T1 PRI trunking
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