AT&T MDW 9000 Quick Reference page 15

MDW 9000 Compatibility
MERLIN 206/410/820 and MERLIN Plus system buttons
should be assigned as follows; 2, 3, 4, and 5 are line or
feature buttons:
3
ON
RANGE
To use MERLIN LEGEND system feature codes with this
phone, program the top right-hand button as a System
Feature button. This will permit you to use the wide array
of LEGEND system features by turning the set on, pressing
the System Feature button, and dialing the appropriate "*"
code number. Your wireless phone's [
you to enter programming mode. It does not work when
using the MERLIN LEGEND system features.
MERLIN 1030/3070, MERLIN II, and MERLIN LEGEND
system buttons should be assigned as follows; 3, 4, and 5
are line or feature buttons:
3
R A N G E
4
18 PMUTE
MSG
BATT
2
Feat
4
P M U T E
18
MSG
ON
BATT
14
5
] button only allows
5