What version of Beocom 6000 do you have, set diagram below -- Mark 1 or 2 Login to view image

Sorry for leaving that out, Mark 1.

Keith must be busy otherwise I am sure he would have replied further. Firstly have you tired the default pin of 0000? - always worth a try! Otherwise, with a Mk1 BC6000 you may wish to try a reset of the base. You can do this as follows: - Reset base: Press (dot) 7 000 8 Out of interest you can also reset the handset by pressing (dot) 7 000 9. Be aware that your phonebook is probably stored on the base, so you may wish to note down important numbers first!

Thanks for the reply, was quietly waiting for the answer. I wasn't to worried for the phonebook so went ahead and reset the base. It did reset the base as the formerly connected phone now complains with "no signal" but the previously disconnected phone still won't connect. When selecting 'register basestation' it finds the base, I select it and it then asks for the pin. I enter 0000 and press OK. The handset then reports an error (which is similar when entering a different pincode). I wonder if 0000 is indeed the default pin or that the pincode has actually been reset. Am I doing something wrong or might there be some other problem?  

The Mk1 phones did have a problem with the RF chip that stopped them connecting, but given that at least one of your phones was working recently let's hope that you can re-connect. Have you tired resetting the handset as well using the (dot) 7 000 9 sequence? Also recycle the power on the base unit - leave it off for 30 mins (or even overnight) before trying to reconnect.  Connection can be temperamental but others have had success by leaving it all powered down for a while, including the phone handsets themselves. Make sure that the phones are fully charged when you try to reconnect also. EDIT: This thread is a good example of perseverance reaping results: 

Location: Warwickshire, UK

My B&O Icons:

BeoCenter-9500.png

Beoremote-Beo4.png

Beovision-10.png

Beotime.png

Beosound.png

Beosound-Explore.png

Beosound-Essence.png

Beoplay-P2.png

Beoplay-M3.png

Beoplay-H4.png

Beoplay-H3.png

Beoplay-Form-2i.png

Beoplay-Earset.png

Beoplay-A2.png

Richard, In the Mark 1 Beocom 6000 the pin code was almost never used as intended. Due to a software fault which was never fixed if the base thinks it has six phone connected it will also request the pin. This situation often happened where people would reset their phone for whatever reason, so it was not removed from the base. If you are sure that the base was reset then this is not your problem, but if as you say, the phone could not connect to the base I am not sure how the base could have been reset! I suggest as a next step you unplug the batteries in each Beocom 6000 and replace the batteries in the other Beocom 6000 to ensure your problem is not related to one of the batteries. The "No Signal" situation can be the RF chip, but it can also be the battery on the margin. Keith..

Thanks for all your suggestions, one of the handsets was low on battery which might explain lost signal. I will unplug the base overnight and make sure the handsets are properly charged and try again tomorrow. Thanks, you guys are a lot better than official B&O support.

I'm very sorry to inform you that it didn't work. Leaving it unplugged didn't solve the issue. I'm now completely lost...

Have you tried removing/replacing/charging the batteries in the handsets?  If fitting a brand new battery you should press 9 # 9 # 9 * 6 5 5 OK in order to let the phone know it is charging a new battery. Can I also check how you are trying to connect?  I haven't used my ISDN for a while, but I think that it is only 'open for registration' for a minute or so after connecting the power.  (This is unlike the PSTN bases which have a physical button to press to open registration) EDIT:  I checked the manual - there is also a light on the rear of the ISDN that flashes whilst open for registration - is this happening? A further thought that might enable you to test the handsets:  If your internet modem/router has built in DECT (many do), then you may be able to connect your Beocom 6000s straight to it cordlessly without using the B&O ISDN base. I have used Beocom 6000s like this in the past (with a German router) – there will be reduced functionality but calls in/out should work fine.  At least this would check that the handsets work.