The selective call acceptance allows controlling incoming calls by making a list of telephone numbers which you are ready to accept. But incoming calls from subscribers that are not listed are directed to the answering machine by which the caller is informed that you do not accept calls at the moment.
VENTA DE TELEFONIA VOZ IP IDEAL PARA CABINAS, CALL CENTER Y RESIDENCIAS QUE CUENTEN CON EL SERVICIO DE INTERNET BANDA ANCHA
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