Group Paging
A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
AddPac AP-GS1004A is one of the models of inter-network VoIP GSM gateways, through which, it is possible to format a single network unit and to use it for VoIP-telephony, analog communication lines and GSM-network.
Spectranet
Spectranet is the leading VoIP (Voice over Internet Protocol) services provider. Spectranet offering Voip Solutions with high features at very low cost.
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