Do Not Disturb
By activating this function all incoming calls are blocked and automatically redirected to the answering machine. The function can be switched on and switched off at any moment.
Grandstream HandyTone 701 – is a powerful analog telephone adapter (ATA) of the next generation, which works through IP protocol.
ZZ Telecommunications Inc.
ZZ is a well-established long distance telecommunications common carrier. ZZ`s strengths are derived from its ability to attract carriers of like interests through aggressively priced routes to difficult international countries and through its high qualit
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