Question about Vtech 5808 Cordless Expansion Handset

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5808 drops call and starts searching for base

My hand sets will drop calls half way through a conversation and start searching for base. Also they seem to drop all the battery charge instantly at that time. I have experienced this problem with 5 different hand sets. Anyone please have a solution ???

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  • Anonymous Mar 30, 2008

    Same problem - call drops and handset keeps trying to search for base

  • bvassale Sep 26, 2008

    So disturbing! Happens all the time!

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  • 574 Answers

Got a wireless router? Change channels on the router off Ch6, the default channel and that may help your phone communication to the base station. I have had wireless phone customers lose their wifi when their phone rings, same frequency or intereference on that frequency.

Posted on Feb 13, 2008

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2 Answers

Vtech 5808


Hi it sounds like the problem is with either the base unit board or the board on the phone.
Do you have one main phone plugged into phone socket and the other two are extra phones that just plug into mains and pick signal up off the main phone if this is the case then the problem will be with the main base unit.
So first thing i would do is check the cable to the phone from phone socket is secure and hasnt been trapped under furniture or somebody triped over it and damaged the wire.
If this is not the case then the problem will be with the base unti itself and as the waranty has ran out this usually means that the phone was only really supposed to last untill this time this is the same with most electrical unit you buy.
The problem could be something as simple as a bad solder on the main board near where the signal is sent from the base.
I would say that the actuall phone is not to fault because if the main phone was at fault then the other 2 would work fine.
If you are ok at taking electrical units apart and can test the board near the signal output on the base it might just be that the solder has failed after this time.
If the phone works for a short while before it dropps the calls then it more than likely is a solder problem the thing is it is difficult to get a spec sheet for these phones i will look and if find one let you know.
Have you tried plugging a different phone into the phone socket to eliminate a problem at the phone exchange let me know how you get on and ill let you know if i find anythnig for you ok

Dec 01, 2007 | Vtech i5808 Cordless Expansion Handset

1 Answer

My phone is fairly new and almost immediately after I pick up the phone it starts beeping for low battery. Also it searches for a signal all of the time and cuts off conversations because it's searching...


It is searching for a signal because its signal is so weak it cannot find the base. If it cannot communicate with the base, there is no conversation.

New or not ... your battery is either faulty, prematurely dead or not charging. I am leaning toward not charging ... do you have it plugged into a hot outlet (not switch controlled)? Can you measure the power coming OUT of the transformer? Is there a charging light on the base unit that would indicate a charging condition?

Jun 05, 2010 | Phones

1 Answer

Says it's unable to connect. I assume to base phone.


you have first to page the phone on basis set then you can use the hand set

Nov 06, 2009 | Vtech 5808 Cordless Expansion Handset

3 Answers

Uniden dect 6.00


handset dies or cuts off frequently during calls or when talk is pressed to answer even when fully charged and right in front of the base unit. Beyond frustrating.
If I hadn't lost the reciept, I'd return this useless phone in an instant.

Aug 30, 2008 | Uniden DECT 6.0 Cordless Telephone...

1 Answer

Uniden Power Max 5.8 - (TRU8880-2)


1. Disconnect Battery from handset(s)
2. Disconnect Phone Cord from wall jack
3. Disconnect Phone cord from base unit
4. Disconnect AC adapter from wall outlet
5. Allow to sit for 30 min
6. Reconnect Phone Cord to base
7. Reconnect Phone cord to wall jack
8. Reconnect AC Adapter to wall outlet
9. Reconnect Battery to hanset until you click or feel the plug snap into place
10. Re-Register Handset by placing on main base in most instances.

please rate this post

Aug 04, 2008 | Uniden 5.8GHz Dual Cordless Phone

1 Answer

We are having similar problem with vtech 5808


Install new batteries! Be sure to let them charge fully (overnite) before first use.

I have 5 of the i5808 expansion phones around my house - most about the same age - and they all started acting up ithin a few months of each other. I "experimented" with a new battery for one, and it solved the issue for that one phone...so I replaced the batteries in each of the others that were experiencing the problems. This was about 2 to 3 months ago, and all phones have been problem-free since the new battery installs!

Hope this helps.

May 19, 2008 | Vtech i5808 Cordless Expansion Handset

2 Answers

Always searching, cannot register to base unit


Throw it away.  I've spend over $100 with new batteries, calling Motorola, emailing Motorola and moving phones around my house. My phone not only cannot find some of the handsets within the house, but sometimes will just drop the call...and that's on the base. Once the call is dropped, the handsets all say, "Looking for Base".  I am now throwing away all of my phones and buying a complete new system.  After loosing multiple business calls, I have given up.  Motorola is no help, They keep telling me its out of warranty, can only suggest that I unplug the system and re-plug it all in, in various orders with batteries and phone line connections.  Then told me I had possibly purchased the wrong batteries.  They sold them to me.  
Throw it away...it will save you HOURS and HOURS of pain and agony of these phones.

Mar 23, 2008 | Phones

2 Answers

Vtech 5808


This model of phone have serious problem regarding the battery. This phone use a lot of juice out of the battery. I'm pretty sure that when your battery is foul charge it doesn't do it. So the problem is in the handset. When your battery starting to get to low you loose your connection. Why?...Because the detection to LOW_BATT in your handset is not calibrate adequately. So it thinks that the batt is weak, to weak to make a conversation.

The other problem could be that your handset doesn't really foul charge your battery. So when you are to far from the base or talking for to long . There's not enough power in the battery to raise the output signal level(db) to your base.

Nov 05, 2007 | Vtech i5808 Cordless Expansion Handset

1 Answer

Phones going dead


buy a new battery from ebay.
just type in the search box, 80-5808-00-00
(the battery number)
You should be able to get a replacement for around $6 incl shipping.
This worked for me anyway. (Same symptoms you described)

Jan 04, 2007 | Vtech IP5850 Cordless Phone

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