Troubleshooting

Pressed key does not respond:

Check whether the key is stuck. 

Telephone does not ring:

Check whether the "do not disturb" function was activated on your telephone. On lifting the handset, you will hear a special dial tone. If so, deactivate it . 

You cannot dial an external number:

Check whether you telephone is locked. On lifting the handset, you will hear a special dial tone. If so, unlock the telephone . 

To correct any other problem:

First contact System Support. If System Support is unable to correct the problem, contact Customer Service.