Comdial Imression 2022S Reference Manual page 71

GCA70–226
Comdial has taken reasonable steps in the design of all product
features, including DISA, which protect against unauthorized or
fraudulent access to, or use of, a system, or which protect against
unauthorized, fraudulent or unaccounted-for access to, or use of, long
distance lines. However, no system is entirely invulnerable or immune
from unauthorized or fraudulent access or use, or unaccounted-for
access or use, and therefore Comdial disclaims any and all liability,
and makes no warranty, express or implied, relating to unauthorized or
fraudulent access or use, or unaccounted-for access or use.
• To make a DISA call to an intercom number,
1. Dial number for DISA line (listen for voice prompt if
available).
2. Dial extension number.
3. If station does not answer or is busy you will either hear busy
tone or hear voice prompt if available. If you dial an invalid
number, you will hear error tone.
4. If voice prompt provides dialing codes, dial proper code for
services such as: track, message waiting, or voice mail.
• To make a DISA call to use system features,
1. Dial number for DISA line (listen for voice prompt if
available),
2. Dial authorization code (listen for voice prompt if available;
otherwise, hear stutter-style dial tone—remember, the system
gives you only three tries to dial your code correctly),
3. Dial feature code and listen for acknowledgment tone.
NOTE: If you are selecting a line group through DISA for outside
calling, you can raise the audio level on this line when needed.
Do this before you select the line by dialing
dialing 1 for 0 dB, 2 for +3dB, or 3 for +6dB of gain. In some
cases, added gain can introduce circuit instability that presents
itself as a singing sound, which can interfere with dialing and
voice communications. If you experience this condition , select
a lower gain setting.
Using The Other Telephone Features
LCD Speakerphone Reference Manual 7 – 19
7, and then