Instruction manual
Telephones
Table 3–
2. Analog Multiline Telephones
Model Description
BIS-10 10-button telephone with built-in speakerphone
BIS-22 22-button telephone with built-in speakerphone
BIS-22D 22-button telephone with 16-character display and built-in
speakerphone
BIS-34D 34-button telephone with 16-character display and built-in
speakerphone
MDC 9000 Cordless Cordless multiline
MDW 9000 Cordless and wireless multiline
MERLIN II System Display
Console
34-button telephone with a built-in DSS (the only telephone
model that is uniquely used as an operator console) for
Direct-Line Console operation
MERLIN PFC
Telephone
Analog multiline phone, fax machine, and copier; requires
two analog multiline extension jacks
Single-Line Telephones
Table 3–
3 lists the recommended single-line telephones. Other available single-
line telephones are also supported but are not recommended for Release 3.0 or
later systems. Contact your AT&T representative for more information.
Table 3–
3. Single-Line Telephones
Model Description
2500 YMGL Basic desk telephone
2500 MMGL Basic desk telephone with selectable positive disconnect
8101 Basic desk telephone with jack to support adjuncts
8110 Basic desk telephone with jack to support adjuncts, built-in
speakerphone, and programmable dialing buttons
3129-WTWA Touch-tone outdoor telephone with cast aluminum housing, armored
handset cord with bell ringers
3129-WRWA Rotary dial outdoor telephone with same features as 3129-WTWA
3129-WAWA Auto dial outdoor telephone with cast aluminum housing, armored
handset cord with bell ringers
3129-WNWA Non-dial, automatic ringing on dedicated circuit outdoor telephone
with cast aluminum housing, armored handset cord with bell ringers
System Components 3–23










