Some telephones, depending on the brand and model, have the intercom function, which allows to begin communication by sending the signal. When the signal comes, the telephone set rings a signal different from the standard ring tone call. After that the telephone temporarily switches off from the telephone line and works as an intercom.
Bridge Corporate Communications
Bridge Corporate Communications provides VoIP systems an video conferencing in Winnipeg, Manitoba.
Leaders in the SMB market space for Cisco and Tandberg.
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