AT&T 1987 AT&T Telephone User Manual


 
Model 2500 Series
Each of the following Model 2500 voice terminals come equipped with:
Handset
Touch-Tone Dial (Dual Tone Multifrequency - DTMF)
Ringer Volume Control.
Several 2500 series voice terminals are shown in Figure 4-4. Supported 2500 series sets
include the following:
Model 2500 DMGC—Desk Set with message waiting indicator and Recall button for
timed switchhook flash
Model 2500MMGB—Basic desk set
Model 2500 SM—Basic desk set that can be used with a 4A Speakerphone.
Model 2514 BMW—Basic desk set equipped with built-in headset speaker jack.
Model 2554 BM—Basic wall-mounted set.
Adjuncts: Refer to Table 4-D.
HANDSET
TOUCH-TONE
TELEPHONE
DIAL
2500MMGB BASIC DESK SET
RINGER
VOLUME
MESSAGE
RECALL
INDICATOR
2500DMGC DESK SET WITH
EXTRA FEATURES
Figure 4-4. Mode1 2500 Series (Analog) Voice Terminals
2554BM
BASIC
WALL SET
4-14