Zte TELSTRA T20 User Manual page 57

Symptom
No incoming ring
or alarm tone
(No) keytones
when pressing
keys
How do I extend
the incoming ring
time?
How do I change
the Ringtone?
A phone number
cannot be dialled
MMS messages
cannot be sent or
received.
Solution
Check the ring tone and ring volume settings
under Sound Profiles.
Check the handset is not muted (Long press the
# key)
Check the key tone settings in the current
profile.
Menu > Settings > Sound Profiles > Edit.
Menu > Settings > Calls > Call forwarding > When
no reply > Activate > Set delay time to your
needs. A blank forwarding number forwards to
your Voicemail service.
Edit the current profile and select a new tune
from the Audios directory.
Check for network coverage.
Check whether any call restrictions are set.
Menu > Settings > Calls > Call barring.
Your phone may not be setup with correct
network settings, contact Telstra to setup. This
type of content may be restricted by your
service.
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