P H O N E TR O U B L E S H O O T I N GCalling6-154 DT700 User ManualNote: If you cannot restart the phone using the Menus if your phone is locked up,unplug the phone from power and the network for ten seconds, then reconnectthe telephone to your network and power to perform a restart.5 If you are still having problems with your phone, contact your system administrator.T h e p h o n e c a n n o t m a k e a n y c a l l s1 If you are using a headset, try using the phone handset to make a telephone call. If thephone works while using the handset but not your headset, replace the headset youhave attached to the phone.2 Press the Menu key, then go to 6 Status, 2 Network Information and verify that thephone has an IP address, Subnet Mask, Default Gateway, and DNS Server listed. If any ofthis information is missing, there may be a problem with your connection to thenetwork. Contact your system administrator.3 Restart the phone:a. Press the Menu key.b. Select 5 Reboot.c. Press the OK Soft Key or b Enter key on the cursor pad to restart the phone.Note: If you cannot restart the phone using the Menus if your phone is locked up,unplug the phone from power and the network for ten seconds, then reconnectthe telephone to your network and power to perform a restart.4 If you are still having problems with your phone, contact your system administrator.T h e p h o n e c a n n o t m a k e a n y e x t e r n a l c a l l s1 In your network requires and outside access code to reach an outside telephone line,make sure you enter that as the first number when you are dialing an outside line.2 Verify that your network is not having problems accessing outside telephone service.3 Contact your system administrator to verify that your account is authorized to callexternal numbers.4 Press the Menu key, then go to 6 Status, 2 Network Information and verify that thephone has an IP address, Subnet Mask, Default Gateway, and DNS Server listed. If any ofthis information is missing, there may be a problem with your connection to thenetwork. Contact your system administrator.5 Restart the phone:a. Press the Menu key.b. Select 5 Reboot.c. Press the OK Soft Key or b Enter key on the cursor pad to restart the phone.Note: If you cannot restart the phone using the Menus if your phone is locked up,unplug the phone from power and the network for ten seconds, then reconnectthe telephone to your network and power to perform a restart.6 If you are still having problems with your phone, contact your system administrator.A S p e e d D i a l / P e r s o n a l D i r e c t o r y e n t r y i s n o t w o r k i n g c o r r e c t l y• For any speed dial or Personal Directory numbers that are configured to call anoutside/external telephone number, verify that you have to outside calling codeprogrammed at the start of the number entry, and that your account is authorized to callexternal numbers.