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.
Dialdigit lets you use your Internet connection to make and receive phone calls using our VoIP network. We offer a business measured plan, monthly packages calling along with high quality Internet phones and VoIP devices.