Question about Plantronics Calisto Pro Series Cordless Landline/VoIP Phone

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Display on handset of Calisto Pro Series D150 is blank

The display on the handset of my phone has suddenly gone blank, so I am unable to see menu information, etc., (including whether the phone is muted or not). It worked correctly yesterday and didn't when I answered a call earlier today.

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  • deborah_acke Jan 14, 2009

    The handset has power; the display screen lits up but none of the commands, etc., are displayed. If I click the menu button, I get a series of dark lines and colors that look almost like a huge spreadsheet has been compressed onto the screen (though that obiously isn't the case); nothing is legible and using the up and down arrows cause it to get darker or light, but nothing else ever appears. When I click the END button, it goes blank again.

  • deborah_acke Jan 15, 2009

    Since the phone has power and removing/replacing the battery didn't help, this seems like a logical explanation of the problem. I am replacing the phone.
    Thank you.

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Hi!!! Disconnect the power cord and wait for 10 minutes and connect it back..If it does'nt work then buy a new one ite too expensive to repair the board..good luck..

Posted on Jan 14, 2009

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Remove the battery from the device for sometime.also clean the socket where the battery is inserted and then reinsert it again and check out.if still the same problem the battery most probably needs replacing.still get it checked by a mechanic it can be internal circuit problem also.
thanks.

Posted on Jan 14, 2009

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I think your battery should be replaced...

Posted on Jan 14, 2009

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Is it charged properly.also check out the battery .also if it came in contact with the water let it dry for sometime then check out.

Posted on Jan 14, 2009

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The problem is the LCD display has burned out, has the phone been dropped? in any event you will find it is cheaper to replace the phone than fix it.

Posted on Jan 14, 2009

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