User guide

A D D I N G I P P H O N E S T O T A L K S W I T C H 1 9
Checking and updating firmware
Occasionally, you may want to check and/or update the TS-850i firmware.
To check the firmware version:
1. In Idle mode, press the Increase Volume button on the left side of the handset. After a
brief delay the phone will display a System Status screen.
2. Press the down arrow button to show the second screen, which includes the firmware version
(next to the title "SW:").
NOTE: If your installation uses repeaters to extend the range of the handsets, turn the repeaters
off and bring the handsets within range of the bases before updating the firmware.
For instructions on obtaining firmware for your region and language, contact your Authorized
TalkSwitch reseller. If you purchased directly from TalkSwitch, visit http://
global.talkswitch.com to obtain further information or assistance.
For more information, refer to the Troubleshooting section in your phone user guide.