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.
An opportunity to use the other connection line if the usual line is engaged.
ISPhone, Inc.
Founded in 1997, ISPhone is one of the world`s first VoIP networks, with members all over the world. Our mission is to help service providers worldwide profit from the telecom revolution. ISPhone provides the network, termination, and billing services tha
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