Siemens Advance Plus, Quick Reference Manual

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Where to Go for Assistance 11
Where to Go for Assistance
Although every company has its own way of handling support
for Optiset E telephones, most have a person responsible for
making configuration changes and answering questions about
the telephone system. This person, the system administrator,
can provide you with information on the features you need to
use and can help troubleshoot problems with your telephone
when necessary. For more detailed information about your
telephone’s features and operation, refer to the Optiset E
Telephones for Hicom 150 E, Administrator Guide (G281-
0460-00).
Your Class of Service
Each telephone in your Siemens telephone system has a class of
service (COS) specifying the features available to it. Therefore,
you may find that some features included in this guide are not
available on your telephone. Ask your system administrator
about the features assigned to your telephone.
Status Lights
The red status lights next to the feature keys tell you the idle,
busy, or in-transit status of calls on those keys. A feature key
status light may turn on steadily, blink, or flash at different rates
to signal the status of the line. Lights next to the feature keys
may indicate the on/off status of that feature.
When the light is... the line is...
Off Available
On steady In use
Blinking On hold
Flashing (faster) Ringing