Keywords

#business_telephone_system

Business telephone system

Telephone system typically used in business environments

A business telephone system is a telephone system typically used in business environments, encompassing the range of technology from the key telephone system (KTS) to the private branch exchange (PBX).

Fri 13th

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Business telephone system Plain old telephone service 1A2 Key Telephone System Telephone Telephone exchange Telephone number Telephony Application Programming Interface Bell System Telephone keypad History of the telephone in the United States
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