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Feature description
553-2681-100 Standard 5.00 August 1996
When the attendant decides to place the call on hold, the attendant presses the
signal Remote (SIG REM) key to send a flash to the RLT. The attendant
receives a dial tone from the Remote site and dials the DN assigned for the
Silent Hold code. The hold code is outpulsed to the Remote site and is
translated, and the CO trunk is placed on hold. The Remote site then sends a
hold confirmation tone (four to six 50-ms bursts of 440-Hz tone) to the
attendant, who then releases the RLT by operating the release (RLS) key. The
Remote site recognizes the disconnect signal and releases the RLT.
A recall occurs after the recall timer has elapsed. An idle RLT is seized, and
the held call is presented to the CAS attendant. When the attendant answers,
the Remote site receives answer supervision, transmits an information tone
(four to six 50-ms bursts of 440-Hz tone) to the attendant, and removes the
hold condition from the CO trunk. The attendant can then complete the call.
The CAS attendant can also hold the RLT at the console by operating the
HOLD key. This differs from Silent Hold in that the CO trunk is held at the
Main site (over the RLT) rather than at the Remote end.
Station Category Indication
When CAS is active, calls from a Remote telephone to the Attendant DN
(ATDN) appear on the Remote Incoming Call Indication (ICI) key lamp at
the CAS Main regardless of Station Category Indication (SCI).
Timed Reminder Recall
If the Remote site is programmed to recall the attendant on “no answer” calls,
then after the prescribed timeout (during which the telephone has not
answered or the CO trunk has not disconnected), an idle RLT is seized and
the call is presented to the CAS attendant. This time, a different attendant may
answer the call; however, an RLT X ICI indication is still received.
When the CAS attendant answers the call, the Remote site detects answer
supervision over the RLT, sends a ring-back tone for 2 seconds to the
attendant, and then connects the call. The ICI and the ring-back tone prompt
the attendant to answer in the appropriate manner. During the answer, the
CAS attendant and the calling party talk over the ring-back of the called
telephone. The attendant can press the release destination (RLS DEST) key
to stop the ring-back.
