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Sound point pro se225 makes an annoying hum when on speakerphone or on the handset, is there anyway to fix?

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The only easy fix for this is hoping its a noisy mains supply or fault with the power supply. When on hands free the phone requires more power and the power supply is probably not working like it used to.

Start by disconnecting the phone line and press the handsfree button it probably will still have the same background noise. If so look to see if you can get an alternative power supply for the phone, alternatively try plugging the power supply in somewhere else away from any other cables that supply other equipment.

Power supplies over time can suffer from expanding capacitors that deteriate and cause the output to no longer be smooth or within tolerance.

If the supply is a 12v 1amp supply for example. (will be printed on the label of the bit that plugs in the wall) any power supply will work with the same specs you just need one with the same connector.
The most likely problem will be with the built in amplifier inside the phone that drives the speaker. This is not a simple repair and will require electronics knowledge, but if you feel your up for it and its out of warranty open it up and look at the pcb near where the speaker is connected any capacitors around that area that don't have a perfectly level top may need replacing.

Posted on Nov 19, 2014

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Posted on Jan 02, 2017

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SOURCE: Panasonic Speakerphone base station makes noise when handsets use

Cut the wire to the speaker in the base unit. Problem solved.

I have a Panasonic KX-TG6074b phone as well, and it does the same thing. In addition I can not understand the digital voice that announces who is calling. Therefore I came up with a very simple solution to buying a new phone, because the rest works great. I cut the wire to the speaker. The only other solution in buy a phone from a different manufacturer, because Panasonic's quality stinks.

Posted on Mar 01, 2010

  • 1116 Answers

SOURCE: I have a polycom soundpoint

There may be two different conditions potentially causing this issue.

If type 1, a.k.a. "normal" Caller ID is turned on through the local phone service, the name and phone number of the person calling will be displayed on the SoundPoint Pro's LCD when the phone rings; or, if you are on the phone and a call comes in on another line which is not in use. For the SoundPoint Pro phones to understand the signal from the carrier, the Caller ID signal should be on the second ring. If your local phone service sends the Caller ID information on the first ring the SoundPoint Pro may not receive it and will not display the information.

Check with your phone company to verify on which ring their signal is being sent.

This is the second.

The SoundPoint Pro phones may display no caller ID or display all Zeros for the caller ID or only display one number all of the time. These symptoms are all caused by the same issue, the inability of the software to overwrite the call history which has become full. This does not occur in all phones and replacing the phone does not always resolve the issue. Work Around: SoundPoint Pro SE-220 and SE-225 have a feature to clear call history. Incoming or outgoing call history can be cleared by pressing Select then arrowing down to INCOMING CALLS or OUTGOING CALLS then press Select > Clear Call History. Clearing the Call History should restore the normal function of the Caller ID Display.

Posted on Aug 09, 2011

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