Siemens Optiset E Standard - Volume Keys

Volume Keys 15
Volume Keys
Use the Volume Up and Volume Down keys to adjust
the voice volume of your telephone. While on a call, press
to raise the volume, or press to lower it until you reach the
desired volume level.
When you hang up or switch to another call, the volume returns
to the original level. To retain your new settings, press the
(Select) key or the and keys together before
hanging up or switching to another call.
+
-
+
-
✓
+
-