Manual AT-T SYN 248 (page 90 of 116) (English)

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Syn248 Installation and Configuration Guide Back to Contents

Troubleshooting 89

b. Select the extension from the Select Extension to Back up drop-down list, and

click to save the file to a specified location on your computer.

You will need to locate and retrieve this file later, so make sure you remember

where you saved it. The default file name will be in the format:

backup_ds_[extension number]_[year]-[month]-[day]_[time].cfg.

If you back up the same extension less than one minute after creating the

backup, you may overwrite the earlier backup file.

3. Perform a complete factory reset to return to the values set at the factory.

a. Unplug the LAN cable.

b. Insert a pen or the end of a paper clip into the RESET button, located on the

underside of the Deskset. Hold until Restoring to Factory Defaults appears on

the screen (approximately 5 seconds).

After the Deskset restarts, the screen displays EXT 0.

c. Reconnect the LAN cable.

The Deskset rejoins the system. Unless the entire system was reset, the Deskset

retains its previous extension number. After the Deskset rejoins the system, the

screen changes from EXT 0 to the previous extension number.

4. If you backed up the Deskset settings in Step 2, restore your settings.

a. Log on to the WebUI as the Administrator at the PC where you stored the backup

file.

Syn248 Desksets with static IP addresses need to have new addresses assigned

if the Deskset IP addresses are to be used for logging into the WebUI. At the

Deskset, press MENU –> 3 –> 3 –> 2 to set the IP address.

b. Click Device Management, then click Back up/Restore.

c. Under Restore Extension Settings, select the Deskset's extension number

from the Select Extension to Restore drop-down list. See “Back Up and

Restore Settings” on page 58.

d. Select the backup file.

e. Click Restore Extension.

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AT-T SYN 248 Manual

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