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.
Icecom Ltd. offers IP communication solutions to boost the business of its customers. The company has combined SIP technology, a VoIP environment as well as mobile and web solutions into products that are flexibly adaptable to meet any customer specific n
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