Question about Spectralink (PTB400)
You can try doing a a soft-test reset but if that doesn't work then you'll need to repalce the handset.
Power off the phone.
Press and HOLD the volume key (VOL) and the power key at the same time,
(the phone will chirp and display the serial number.)
Now...release ONLY the power key,
(phone will vibrate and make a long tone.)
Now release the volume key,
(the display will have a lot of black boxes and ZZZZ's - you will also see the bottom of the display showing "msg", "bat", etc.)
Count to three and then power off the phone.
Posted on Sep 04, 2012
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Posted on Jan 02, 2017
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