Technical data

Appendix
51
Problem Possible cause Solution / recommendation
No automatic call-back on busy
Call-back code is not entered,
telecommunications provider or telephone system
does not support this function or the function is
not released.
Enter the call-back code.
Ask your telecommunications provider or your
telephone system manufacturer whether the
function is possible or needs to be released.
Call forwarding cannot be initiated
Missing or wrong settings for the call forwarding
function.
Telecommunications provider or telephone
system does not support this function or the
function is not released.
Take out the setting or check and change them if
necessary.
Ask your telecommunications provider or your
telephone system manufacturer whether the
function is possible or needs to be released.
No telephone number is being displayed for an
incoming call
Your telecommunications provider or telephone
system does not support this function or the
function is not released.
The caller has restricted the presentation of his
telephone number.
The call comes from a public telephone.
The call comes via a telephone network that does
not support the transfer of the caller's telephone
number.
Ask your telecommunications provider or your
telephone system manufacturer whether the
function is possible or needs to be released.
For further questions, please contact your local dealer who will give you support.