AT&T Merlin II Release 3 System Manual page 51

CONSIDERATIONS
RELATED FEATURES
3-22 MERLIN II System Features
Fixed Features
Pressing Conference, Drop, or Transfer sends unadministered signal to the
host switch to perform the function in the host system. To use the MERLIN
II system Conference, Drop, and Transfer features, you can program local
fixed feature buttons, as described below in "How to Program".
NOTE: The Hold button works the same way in both systems, so there is no
need to program it for local use.
Ringing Patterns
In most cases, the ringing patterns for incoming calls are different for the host
system than for the MERLIN II system. In behind-switch mode, MERLIN II
system phones and basic telephones take on the ringing patterns of the host
system.
Behind-switch operation is a system type, equivalent to square, pooled,
and pooled with Automatic Route Selection. Therefore, a system set for
behind-switch operation cannot have line pools and cannot use Automatic
Route Selection.
When behind-switch is selected, you press # to signal the host switch
while you are active on a call. However, the MERLIN II system uses # as
the first character for many of the codes used to access various features.
Therefore when you want to access MERLIN II system features while in
behind-switch mode, you must program a Speed Dial Access button (see
"How to Program" below). Then you press the button, instead of pressing
#, before dialing the code.
In systems set for behind-switch operation, there is no One-Touch
Transfer feature. People with MERLIN II system phones can use the
Transfer with Voice Announcement and Call Park features, however, if
local Transfer and Camp On buttons are programmed. (See "How to
Program" below.)
If you use speed dial numbers provided by the host switch, MERLIN II
system Call Report (also known as SMDR) prints the "#" symbol, not the
phone number, each time a speed dial number is dialed. Likewise, speed
dial numbers provided by the host switch are not subject to MERLIN II
system Call Restriction.
Basic telephones in behind-switch systems can only access prime lines.
You can receive but cannot make intercom calls, and you cannot use any
MERLIN II system features.
Camp On
Line Assignments in Behind-Switch Systems
Ringing Options