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.
Modus Telecom is a telecoms company with a fresh customer focused outlook. The core Management Team at Modus Telecom has over 20 years combined experience in the telecommunications industry.