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Basic operating instructions
Step by Step
Self Labelling Key-Funktion
If an optiPoint self labelling key module is connected to your telephone, you do not need to label your key mod- ule's programmable function keys manually
A detailed description of the corresponding options is provided in the optiPoint 420 Operating Manual.
Using the Telephone Efficiently
•You probably have certain colleagues or external par- ties with whom you talk on the phone especially fre- quently. To dial these numbers faster and more con- veniently, you can save them on keys
(Saving station numbers for repertory dialing on keys Æ Page 28).
•All too often you reach a busy line when dialing a number. Amid the confusion of your working day, it’s easy to forget to try the number again later on.
To avoid this, make it a habit to use the "Callback" Æ Page 26 function.
Safety Precautions for IP Telephony
Different methods can be implemented to protect an IP environment from external attacks (denial of service at- tacks, viruses, etc.) and call monitoring.
There are no special procedures for operating this de- vice. Please contact your service personnel to find out more about IP telephony security.
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