Siemens optiPoint family - Manual (Page 32)

The optiPoint key module.
With 16 additional function
keys, LEDs, provision for
key labeling and the design
that matches the system
telephones. One shift key
activates a second level for
15 further functions or
name keys. Up to two of
these extension terminals
can be connected to the
right of the system tele-
phone.
12
Accessories for opti
People who use the phone a great deal
will value these accessories.