Nortel Networks M3110 - Manual (Page 157)

M 3900 description Page 157 of 504
Telephones and Consoles Description, Installation, and Operation
On a M3905, plug the amplified headset into the headset port. Do not plug an
amplified headset into the handset jack.
The M3903, M3904 and M3905 have a dedicated headset jack which
supports a non-amplified headset. The M3903, M3904 and M3905 have a
Headset fixed feature key to turn the Headset on and off.
Contact your Nortel distributor for qualified headset equipment.
Headset considerations
Test the headset with the telephone before using. In a noisy environment, an
amplified headset is an option. When the amplified headset is used, two
choices of volume control are available: the rocker control on the telephone
and the switch on the headset. The user should adjust the telephone volume
before adjusting the headset volume. To provide the best communication with
the least amount of distortion, the amplifier should have a higher setting than
the telephone volume control.
Telephone wall-mount kit
For the M3903, M3904, and M3905 telephones, a separate wall-mount
bracket kit must be used. This kit contains a one-piece wall-mount plate that
attaches the telephone to the wall. The wall-mount kit is available from your
local Nortel distributor.
The footstand supplied with the M3901 and M3902 telephones can be
reversed to allow wall mount installations. To provide additional support, an
optional wall-mount brace kit may be purchased.
The wall-mount kit does not support the Accessory Connection Module
(ACM) and its accessory cartridges.
Brandline insert
The M3900 Series Digital Telephones contain a removable insert made to
accommodate your company logo. You can order blank Brandline Inserts
with your company logo.