Broadband Telephony Systems United States
BBTel
BBTel
General office
Broadband Telephony Systems
2660 Horizon Drive SE Suite B
Grand Rapids
MI ,49546
United States
Phone: 1-888-524-8647
Site: http://www.bbtelsys.com
Contact Person
Customer Service / customer service
Phone: 1-888-524-8647
Broadband Telephony Systems
2660 Horizon Drive SE Suite B
Grand Rapids
MI ,49546
United States
Phone: 1-888-524-8647
Site: http://www.bbtelsys.com
Contact Person
Customer Service / customer service
Phone: 1-888-524-8647
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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.
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