AT&T Partner II Installation And Use Manual page 99

Hold. Press to put a call on hold.
Spkr (Speaker) (all models except the MLC-6). Press to dial without lifting the handset. Turns on speaker and microphone (if available),
so you can have a conversation without lifting the handset.
Mic (Microphone) (MLS-34D, MLS-12D, and MLS-12 only). The light next to this button shows when the microphone is turned on; press
this button to turn off the microphone when you are using the built-in speaker. Leave on to use Hands-Free Answer on Intercom feature
(see Appendix B).
Message Indicator. Lights when someone signals you with the Message Light On feature.
Volume Control Buttons. Press
To adjust ringer volume, press
To adjust speaker volume, press
To adjust handset volume, press
On/Off (MLC-6 only). Turns the handset on and off, (You must turn the handset on to make calls.)
Status (MLC-6 only). Quickly updates the display on the MLC-6 handset.
Talk (MLC-6 only). Lights when handset is lifted and turned on.
Charge (MLC-6 only). Lights when handset is placed on the base and handset batteries are charging.
to decrease or to increase the volume of the ringer, speaker, and handset.
or while the phone is idle and the handset is on the phone.
or while listening to a call through the speaker.
or while listening through the handset.
MLS-6
Line/Programmable
Buttons (4)
Primary Line Button
Intercom Buttons (2)
MLC-6
Earpiece Volume
Control
Line/Programmable
Buttons
Primary Line Button
Intercom Buttons
Using Telephones 6-5