special ringback tone
speed dialing
start
one long tone followed by one short, dull tone indicating that the person you dialed is busy on a call and has Call Waiting.
feature that allows you to place a call or enter an account code by pressing the “#” and a 2- or
feature that initiates the sending of a call to a desired telephone.
switchhook | button depressed by the handset when the |
| telephone is not in use. |
system | person responsible for assigning features |
administrator | and overseeing System 25 operation. |
test | feature that allows you to test the lights and |
| ringer on your SLAC and the lights on your |
| Selector Console. |
transfer
trunk
feature that allows you to connect the person you are talking with to another person, and then drop out of the conversation.
a telecommunications line between two switching systems. (See also outside line. )
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