Bosch Integral TM13 Operating Instructions Manual page 132

If in doubt, look it up
If something goes wrong A
The first digit of a call number that you entered in the phone book is a $
You answered a call while entering the number in the phone book. The entry is stored
with a $ in first position. Edit the entry and replace the $ sign by the correct digit.
Call diversion is not performed
Check whether the defined call diversion is activated.
Additional digits cannot be dialed for a call number that was dialed with code
dialing
Postdialing is probably disabled.
A call is displayed on the screen, but your phone does not ring
Check whether the ringing tone has been deactivated (in the "Silence" menu).
No entries in the call list
The call list is probably deactivated. Reactivate the call list in the "Specifications"
menu.
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