| 单词 | KEY TELEPHONE SYSTEM |
| 释义 | Alternative to a private branch exchange (PBX) phone system, smaller, cheaper, but less flexible. Allows a caller to directly select outgoing lines, incoming calls, or use intercom and conference facilities via several buttons. A user does not have to dial ’9′ to access an outgoing line as with PBX, but does not have automatic routing of incoming calls. A KTS is user-installable, handling multiple lines with no surcharge to the telephone company. However, a hunt-group service is not available. |
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