i2021 ISDN Teleset
MAINTAINING THE TELESET
Checking the FW Version
If you experience a problem with the i2021you may be asked to verify the firmware version. To check the FW version of the i2021, press MENU, View, Version. The display will show the version number.
Loading FW
Firmware can be replaced and the i2021 can be updated using the FWLoader. See your distributor or service provider for information on this product.
Troubleshooting Problems
CLOCK FLASHES
nThe Teleset lost power and the clock flashes when power is restored. To stop the flash, press MENU, Clock, Save. The clock maintains the correct time even though power has been lost.
NO DISPLAY
nContrast control is improperly adjusted.
nThe Teleset has no power.
1.Check the power source.
2.Check the position of the PS1/PS2 switch.
SPEAKERPHONE DOES NOT WORK/NO SOUND FROM SPEAKER
nVolume control set too low.
nTeleset in headset mode.
nLine not initialized.
nHeadset plugged into headset jack.
MISSING FEATURE KEYS
nTeleset improperly programmed.
1.ReqParam/RunSPM download not performed.
2.Manual programming not performed.
MISSING CALL APPEARANCES SAME AS “MISSING FEATURE KEYS.”
NO TRANSMIT FROM HEADSET, RECEIVES OK
nMute Key - ON.
LINE NOT READY
nNo S/T synchronization from NT1.
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