Your ISDN 8503T Voice Terminal
The ISDN 8503T voice terminal is comprehensively equipped so that you can make the best use of the many features of the AT&T DEFINITY® Communications System. Familiarize yourself with your 8503T voice terminal by looking over Figure 1 and reading the explanations on the next couple pages.
| Designation card | |
| Line jack | |
| (on back of | |
Handset | voice terminal) | |
| ||
| Call appearance | |
Message light | Feature buttons | |
Adjunct jack | ||
Volume control button | ||
(on back of | ||
Mute button | voice terminal) | |
| ||
Program button | Dial pad/Memory | |
access | ||
| ||
Conference/Ring button |
| |
Transfer/Pause button |
| |
| Redial button | |
Handset | Memory button | |
cord jack | Drop/Test button | |
(on back of | Hold button | |
voice terminal) |
Figure 1. ISDN 8503T Voice Terminal
1
