Unify OpenScape Desk Phone IP 55G - Permitting a Callback

Basic functions 75
Permitting a callback
Prerequisite: The Callback function has been activated by administrator.
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You can also configure this setting via the WBM interface  Page 247.
Press the key shown until the "Settings" tab is active.
Confirm the option shown.
if nec. j Enter and confirm the user password.
Select and confirm the option shown.
Select and confirm the option shown.
Select and confirm the option shown.
Select and confirm the option shown in the context menu.
Select the softkey to confirm.
Services
User
Configuration
Connected calls
Allow call joining
Yes
Save & Exit