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.
Call-Back is
when the initiator of a call immediately calls back for the second time as a
response.
Modern Digital Communications Inc
Modern Digital Communications Inc., founded in 1999, is a service provider offering voice, fax, data, web hosting, domain registration and co-location services.
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