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.
Primarily we provide & maintain Entice Switch systems to Telecoms providers and ISPs. We also host a voip virtual switch system for small to medium operators.Full porting solutions