AT&T MERLIN LEGEND Key System Planning page 111

Features
Note: The ringing pattern heard by an outside caller is shorter than the audible
ringing heard at an MLX or analog multiline telephone even though the total time
is exactly the same. An outside caller hears from one to two rings in addition to
the number of rings programmed for the Delayed Ring Interval and Coverage
Delay Internal. For example, if the Delayed Ring Interval is programmed for two
rings and the Coverage Delay Interval is programmed for one ring, an outside
caller hears four rings before the call is sent to coverage. If both intervals are set
to their maximum values, the caller will hear two additional rings.
Planning Form Instructions
Review the Employee Communication Survey analysis and determine the
senders to be grouped. Record both sender groups and receivers on Key
Systems Form 6d, Group Coverage.
Note: Form 6d holds information for eight coverage groups. Duplicate the
form if more groups are planned.
Locate Key System Form 2a, System Numbering — Station Jacks for
sender information and the specific receiver forms from copies of Key
System Forms 4a through 5b.
Under the "Coverage Delay Interval" heading, at the top of Form 6d:
1 .
Check "3 rings" to keep the factory set interval.
2 .
Check the second box to change the factory-set interval. Write the
number of rings in the space provided.
Under the "Delayed Ring Interval" heading:
3 .
Check "2 rings" to keep the factory set interval.
4. Check the second box to change the factory-set interval. Write the
number of rings in the space provided.
In each column:
5.
Write the group number in the "Group No." space. Start with 1 and
number the groups sequentially.
6.
List the extension numbers of all senders in the group in the upper
block. (Refer to Form 2a).
7 .
List the extension numbers for all receivers in the group in the lower
block. (Refer to Form 2a).
8.
If designating a calling group as a receiver, write "Calling Group" next to
the extension number. (Refer to Form 6e).
Note: If you have not yet created calling groups, you must defer naming
them as receivers until later.
On each copy of Forms 4a, 4b, 5a, and 5b that describes a specific
r e c e i v e r :
9.
Locate an available button in the "Button Diagram" area.
10.
Write "Group Cover" and the coverage group number on it.
Group Assigned Features
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