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ITE-760 User Guide
Aastra - 2568-004 97
Appendix II
Troubleshooting
Troubleshooting
The following table represents the more common problems found with a phone, and
provides possible causes.
Problem Possible Cause
No display
• Check for dial tone
• Check the connection to the phone jack
• Check that the other phones in the system are operating
• Check the setting of display contrast
No dial tone
• Check the connection to the phone jack
• Check the connection of the handset and/or the headset
• Check that other phones in the system are operating
• Check volume setting of handset, speaker, or headset
No sound in the
handset
• Check the volume setting of the handset, speaker, or
headset
Cannot dial out of the
system
(External Calls)
• Check that you have the rights to make external calls
No voice messages
received
• Check your connection to the voice mail system
• Check your welcome message or voice signature record on
the voice mail system
• Check activation of call forwarding to your voice mailbox
The phone is not
ringing
• Check the volume of the ring melody
• Check Call Forward settings