AT&T MERLIN LEGEND System Reference Manual page 266

Features
Direct Station Selector
Display
Microphone Disable
Queued Call Console
Speed Dial
Station Message Detail
Recording
System Access
Transfer
Related Features
An extension dialed by pressing a DSS button is not stored for last Number
Dial.
When a user presses a programmed Last Number Dial button, the digits appear
on the display as if the user were dialing them from the dialpad.
When an MLX telephone user's microphone is disabled, pressing a Last Number
Dial button before lifting the handset turns on the speakerphone so the user can
hear the number being dialed. However, the user must lift the handset to talk
once the call is answered.
Last Number dial cannot be used on a QCC.
Telephone numbers that are dialed by using a Personal Speed Dial are stored
by Last Number Dial. If the number includes a special character such as pause
or stop, the special characters do not work when the number is redialed by
using last Number Dial. Telephone numbers that are dialed by using a System
Speed Dial code are not stored by Last Number Dial.
All numbers dialed on an outside call by using Last Number Dial are recorded
on the SMDR report.
In the Hybrid/PBX mode, if the Last Number Dial feature is used on a Shared
System Access button, the number is stored on the telephone that used Last
Number Dial and not on the principal station.
Last Number Dial can be used to dial the outside number of the telephone to
which the call is being transferred.
Saved Number Dial
Last Number Dial 2-217