Caller ID Blocking
The service allows hiding the number from which you are calling. Thus, you ensure yourself a guarantee that your number does not come to a telemarketing agency and you won’t be troubled by endless calls with offers.
Grandstream has introduced us with a new device model. This new handset, according to characteristics, can rival Gigaset and Panasonic. The main advantage of this device is 4 simultaneous calls to one base, allowing a registration of up to 5 handsets.
Usatel
Soluciones de voz sobre IP para clientes empresariales y residenciales, DID de Guatemala y de las principales ciudades del mundo
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