Question about IBM 900SP Phone

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Good day. I have a Panasonic Head Phone Cordless 900 Mhz, that I went about 4 years ago. The cordless phone seemingly does not work. When I turn the cordless phone on, the light of it turns on but after a while it makes some bips and turn it of automatically. The "in use" light in the base does not turn on. Also, when I press the "locator" key in the base, it makes bips but the cordless phone does not bip. Seemingly there is no connection between both (base and cordless phone). When I put the cordless phone in the base, it charges. I bought a new battery and no work again. Kindly let me know what can I do. Thanks. Diego Lopez Paraguay - SouthAmerica.

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SOURCE: IBM 3900 cordless phone with new battery -

You need to register the base and handset... Here is how to do it:

Press and hold the "CH" button on the right side of the handset and the press and hold the "Page/Find" button on the base.... The handset should say "Registered" in a few seconds

Posted on Mar 15, 2009

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SOURCE: Please Help!!!

You need to register the base and handset... Here is how to do it:

Press and hold the "CH" button on the right side of the handset and the press and hold the "Page/Find" button on the base.... The handset should say "Registered" in a few seconds

Posted on Mar 15, 2009

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SOURCE: 4900 phone problems

Probably need new battery, you can get one here - IBM 4900 Cordless battery

Posted on Jul 16, 2009

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Lost manual need to know how to put message on

Please mention the model number of the phone so that we can guide you.
Assuming your phone is the cordless type please check this link for the manual for the 900 MHz version.

If this is the cellphone please check the link below;

Panasonic Phones manuals

Apr 19, 2011 | Panasonic Lands Phones

1 Answer

Can't hear the callers! (Some times better than others.)

There have been infinite advances in cordless phone technology in the last 15 or 20 years. Since 20 years is a long time to have a phone, I would suggest replacing it with a new one. But, no matter how good your phone is, today's urban environments are a communication nightmare because of all the variable obstacles which can get in the way of radio wave propagation. The only solution appears to be a cellular phone whose systems are improving all the time to offer increasingly reliable service. But the cost of cellular is so high that some people have compared it to legalized organized crime; they know we need their service and they can charge whatever they want. I love my cordless phone, but even with all the modifications and improvements I have made, it is still severely limited. My only option has been to use my cellphone to remain mobile and this link has made the cost a lot more palatable: ( )
I hope this is helpful to you.

May 31, 2009 | Panasonic 900 MHz Cordless Phone

3 Answers

Will Uniden 2085 DECT phone work in india

The phone will not work with 220 V. And as an FYI, taking the unit out of the country will void your warranty.

Apr 01, 2009 | Uniden 5.8GHz Cordless Phone

1 Answer

Phone Manuel

Download the user guide from one of the two websites below:

900 MHz

900 MHz User

Mar 03, 2009 | Panasonic 900 MHz Cordless Phone

1 Answer

Handset Replacement

Did you get a replacement for your handset?

Dec 27, 2008 | Uniden Cordless Phone

1 Answer

No connection between the cordless phone and it base.

1. Make sure batteries match and are freshly installed?
Making sure terminals are clean.
2. "Pair" unit with base unit.
3. Check for connectivity, if not successful, trouble shoot with technician for possible cause, or recheck owners manual.
This manualslib is short for manuals library.

Dec 23, 2008 | IBM 900SP Phone

1 Answer

Range extender for cordless phone

Ours behave similarly. The solution is to position the "base" (one connected to the phone lkine physically) in the center of the home so that the limited range can reach the remote phones at the periphery.
These phones operate at 1.9GHz. At that microwave frequency radio signals do not penetrate walls and floors very well. 2.4 GHz phones suffer increased "path loss" and are no better. The solution for any of these microwave phones is more transmitter power, which is illegal.
900 mHz phones actually work better because at 900 MHz nature offers less signal path loss", but try to find them in stores! For the same transmitter power level a 900MHz phones will have noticeably greater range.
The 1.9GHz D.E.C.T. phones also operate differently from other types of cordless phones and I believe that also contributes to dropped calls and the phone's inability to ring when a call arrives. At the fringe of its range you can see how it struggles to establish a link. Once established it will work well and then simply drop the call when you least expect. I am not a fan of the DECT phones, but they do not interfere with 2.4 GHz wireless routers, etc.

Jan 02, 2008 | Panasonic KX-TGA101S Cordless Handset

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