VTech CS6409 Accessory Cordless Handset, Silver/Black | Requires a VTech CS6419, CS6428, or CS6429 Series Expandable Phone System to Operate, Silver/Blck

I needed a replacement handset for one that had somehow lost its speaker capabilities (It wouldn't work with the intercom or the speakerphone, and the phone wouldn't ring. There was some loose wire or connection somewhere because if I banged it against my hand I could temporarily hear sound, then it would cut out again.). Since I'd originally gotten the 2 handset version of this cordless VTech model (1 base with answering machine and 2 handsets), this was the most inexpensive way to rectify the problem. Also, it's worth pointing out that this accessory handset with a new battery is cheaper than an OEM battery by itself. I had no problem whatsoever registering this handset with the base. The only issue I ran into was that since I still had the original non-ringing handset already registered as the number 2 handset, this handset automatically registered as the number 3 handset. That was a problem mainly because my father isn't very technical and with just the 2 handset setup, he could press the intercom button without having to choose between handset 2 and handset 3, and the handset where I work would ring. Once there are 3 handsets, just pressing the intercom button will not automatically cause any of the other handsets to ring without first choosing between the different handsets. So I read the manual, UN-registered all 3 handsets (you have to hold the locate button for 10 seconds, vs 4 seconds to register, then press the locate button within 5 seconds to un-register all the handsets.) Then I took the battery out of the old non-ringing handset, and just registered the original, fully working base handset and this new accessory handset. Now everything is back to normal just like before the accessory handset went on the fritz. I charged the new handset for 24 hours, and it works like a charm. I'm very satisfied. (I should note that even when new, and fully charged, the batteries in these handsets are rather weak. We basically leave them in their respective chargers all the time unless we're talking on the phone. Then afterwards we return them to their charging bases. I've never had the phone's battery die during a conversation, but I have found the phone to be almost fully drained if left out of the charger for 24 hours or so. Finally, I knew when I purchased this item that it was an ACCESSORY PHONE ONLY. Meaning, it WILL NOT WORK unless you've already got a VTECH BASE UNIT to piggy back off of. I'm not sure why so many people are unclear on this, but the description seems pretty clear to me. This is JUST AN ADD-ON EXTENSION PHONE TO AN EXISTING SYSTEM. It WILL NOT WORK all by itself.

In December of 2012 I bought a set of VTech CS6419-2 phones. They work perfectly. The sound is great, especially on speaker. I was worried they would be cheap (they were inexpensive), and die soon, but they have worked perfectly until now. I decided to get a pair of extensions for other rooms. I am pleased with these phones, also. They work well and "set up" was quick and easy once I read the directions. It took less than 5 minutes for the new extension phones to link to my base phone. I can find no faults with these phones; they are reliable, work well, last well, and are inexpensive.

This is the most infuriating thing to pair with your existing phone set but have heart, I do have a few suggestions to make it easier. But firstly, CHARGE IT. No really. It's not just a useless thing they print on the instructions. The tiny bit of battery it may come with is not sufficient. Do yourself a favor and just charge it fully before attempting this nonsense 1. The quick instructions are wrong and different from the actual instruction booklet. What worked for us was to PLACE the new handset in the main phone base that you already have and PRESS "Find Handset" until it turns red (about 3-4 seconds). (This is in the main instruction booklet but not the quick instruction paper). 2. LIFT the new handset off the base and hit # button (Lifting it out of the base before hitting the # button is not in any of the instructions but the only way we found to make it work). 3. Thank us for saving you from banging your head against the wall for 45 minutes trying to get it to pair... not that I'd have personal experience in that area or anything. After syncing/pairing/whatever it seemed to work just fine. Good addition to our existing phone set when we needed another handset for the basement. Great product, lousy instructions!

I needed a new phone and wanted one that would go with my existing VTech phone. The phone came in a few minutes ago and I attempted to mate it with my existing system. No go... So, I let the unit charge up for 10 minutes and then everything worked perfectly. Connected without issue and phone sound is exactly the same as my existing system. I will buy this phone again to go with my system when I need one. One last thing. This phone is about 30 feet (and 2 walls) from the base station. The connection is perfect, no loss of calls or quality.

I bought this Accessory Handset in 2017 as an extension to a Base Set (Base Set purchased in 2016). I paired it just fine on initial set-up. Fast forward to 2020 and my original Base Set developed an issue so I ordered a new Base Set because these phones have been so good for us. When the new Base Set arrived, I tried to pair this accessory handset but it failed. After a little research I found that I had to un-pair it from the first base. Un-pairing is easy. First thing is to be sure the Accessory Handset is fully charged. Press MENU/SELECT then enter *7890#. Press the VOLUME down (large round circle) to select "Test Handset" using the MENU/SELECT button again. On the next menu you will see "SW Version" and "RFPI IPUI". Press the VOLUME up to see the NEXT PAGE option and select that. On this menu you will select the REGSTR CLEAR option. Press MENU/SELECT to confirm. Now remove battery from handset and wait a minute before plugging battery back in. At this point the display should be prompting you to PAIR the handset. Pair to new base by pressing and holding the FIND HANDSET button on the base for 4 seconds (red IN USE light will light up). Now press the # button on the handset and it should respond that it is registering. I just transferred all three of my original handsets to my new base using this process and it worked great. I now have one base operating 5 handsets. (Footnote, the original base now has no handsets paired to it so I am using it as a charging base.

one star is still too much credit but its there because i can't proceed with a review without some form of rating but anyway, I ordered this product and was so excited to finally have a cordless phone again so i opened it right away, assembled the phone accordingly, then plugged the base into my outlet but got nothing..i tried another outlet..dont know why since something was already plugged into the first one but i did..still nothing..took the phone downstairs to try another outlet and again, nothing..not even sounds from the buttons on the phone so i decided to open the back and take the battery out to try reconnecting it..figured it may have been dying or something..i unplugged the phone from the outlet, was talking to my children as i slid the back cover off and as i took the battery from its resting placed i dropped the battery pack on the floor..it was sooo hot that i screamed out, some of my other children ran over, it hurt and it stung at the same time..bringing my hand to my face i could smell that something had been burning..I'd used my right index finger to take the battery out and visibly had been burned..when i looked at the batter pack it was charred in one spot with a small hole and black soot around that opening..clearly i got a faulty, non functioning, hazardous device..thank God i didn't leave it pugged up because the damage to my home and family had it started a fire could have been so much worse..my finger still hurts and its two days later..there are two dark spots on my finger from where the battery burned me from unknowingly picking it up..needless to say, i am not happy about this..someone has some explaining to do..

We moved into our new house and found that we only had one phone jack that works. We had the Vtech 6409 phone with 3 hand sets, have had them for several years with no problems. I researched a lot of phone systems and was ready to pay $125 for a Panasonic system with 5 extensions. Then, just for fun I decided to research the Vtech phones we already had. I found that the ratings were essentially the same for both systems. I then came upon the add-on phones that went with our current system. I ordered 2 of them. They were delivered promptly, registration was a breeze. You touch 2 buttons a couple times and it registers itself, downloads the address book and other data from the other phones, and functions perfectly. We now have 5 handsets, enough to service the entire house, and I Spent about $30! I don't understand the complaints about battery life. We have had our original set for 4-5 years and have never replaced a battery. Good reception, rings like a normal phone, what more could you ask?? Pretty sweet deal!

I had one handset that I had an issue with getting registered to the base and I had to find out how to manually deregister it without the base it (apparently) was originally registered to being present. This is easy on the Uniden and Panasonic phones I have experience with but Vtech makes it more of an ordeal and does not put the procedure in the manual. It took me a while to search it out online (Vtech support was closed). If you have followed ALL the instructions in the manual regarding registering (and deregistering) the handset(s) to the base but you still have a handset that continues to display a "out of range or no pwr at base" message instead of the 2 step registration message (showing it is ready to be registered to the base) this is what you need to do to enter the handset service menu & manually force deregistration (or if you wish - clear the current registration) of the handset and make it ready to be registered to your base. ***** Don't sue me if it does not work for you or you mess up/break your handset ***** Step 1: Press MENU/SELECT. Display reads: ">Directory" or ">Play messages" (if the base has answering system) Step 2: Enter *7890#. Display reads: ">Test Base" "Test Handset" NOTE: you must enter *7890# fast/quickly, if too slow you will not see "Test Base" etc. Step 3: Scroll down once to ">Test Handset", then press MENU/SELECT. Display reads: ">SW Version". Step 4: Scroll up once to ">Next Page...", then press MENU/SELECT. Display reads: "LCD TEST" on top line. Step 5: Scroll down once to ">Register Clear", then press MENU/SELECT. Step 6: Display reads: "Reg Clear ?", press MENU/SELECT to confirm. Press and hold OFF until "Out of range OR No pwr at base" is displayed. Step 7: Unplug the battery; wait at least 15 seconds, then reconnect. Step 8: The registration instructions will appear on the display. You should now be able to register the handset to the base as per the instructions in the manual. HTH someone out.