Siemens HIPATH 8000 - Manual (Page 19)

Getting to know your OpenStage phone
19
OpenStage Key Module
The OpenStage Key Module is a key module attached to the side of the
phone that provides 12 additional illuminated, programmed keys.
Like keys on the phone, these keys can be programmed and used accord-
ing to your needs
page 25.
You can attach up to two OpenStage Key Modules to your OpenStage 60/
80 SIP.
The diagram shows an OpenStage Key Module for OpenStage 80 SIP.