Unify OpenScape Desk Phone IP 35G, User Manual

Page: 12 / 130

12 General information
Voice encryption
As of HiPath 4000 V4 R1, your OpenScape Desk Phone IP 35G supports voice encryption. This
allows you to use your OpenScape Desk Phone IP 35G to conduct calls without the risk of
eavesdropping. Voice transmission is encrypted and then decrypted again on the call partner's
phone and vice versa.
In terms of security modes, a distinction is made between "Cipher Mode" and "Secure Mode".
You can check which security mode is activated on your OpenScape Desk Phone IP 35G in idle
mode
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Page 80.
Cipher Mode
In order to ensure that your calls are always secure, your administrator can activate "Cipher
Mode". Voice transmission is always encrypted in this mode, even for calls to telephones that do
not support voice encryption. Speech quality may be impaired in this mode however.
If your telephone is in "Cipher Mode", you will be shown the message "always enabled" when the
status is queried
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Page 80.
Secure Mode
If "Secure Mode" is enabled on your phone and a connection is established to a phone that does
not support voice encryption, the call is not encrypted and is thus not secure.
Your administrator can define in your communication system whether you are notified of
unencrypted calls and how
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Page 80.
If your telephone is in "Secure Mode", you will be shown the message "enabled" when the status
is queried
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Page 80.
Single-line telephone/multi-line telephone
Your OpenScape Desk Phone IP 35G is a "multi-line telephone". This means that multiple lines
can be configured by your administrator, which is not the case with single-line phones. Each line
is assigned an individual phone number that you can use to make and receive calls.
The programmable sensor keys function as line keys on multi-line phones
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Page 90.
When using a multi-line phone to make and receive calls, certain particularities must be taken into
account
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Page 93 ff.
Executive/secretary functions
The executive/secretary configuration is a special case. This is a multi-line telephone with special
features (e.g. "Ring transfer", "Call pickup" and "Representative") configured especially for
executive/secretary use
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Page 105 ff.