BT 6510 Digital Telephone and Answering Machine with Nuisance Call Control, Trio DECT

Product information

The stylish BT 6510 will help you rid yourself of unwanted calls interrupting you at home. With its new Call Control feature you can choose which calls you answer, and which calls are sent straight to the answer machine. For example, you can block all International and Withheld numbers, cutting out a large proportion of unwanted sales calls. You can also block up to 10 specific numbers to stop any particular nuisances from contacting you too.

It’s stylish design is intended for function, as well as form. Featuring a 1.8-inch full graphic display, it’s clear and easy to read, while improved, larger speakers mean much better quality of sound.

A Do Not Disturb function will allow you some peace and quiet, ensuring the phone won’t ring or light up to disturb you, while certain contacts can be marked as VIPs- enabling them to get to you even in your peaceful moments.

Key Features:
  • 200 name and number phonebook
  • 30 minute digital recording time
  • 50 call list with 30 number redial
  • Hands free
  • 12 hour talk time


Please Note: In order to use the nuisance call manager, text messaging and visual voicemail features you must be subscribed to a Caller Display Service from your network provider. Charge may apply.

Answering machine
Phone and answering machine
Caller ID display Information See name and number of who's calling (there may be a charge for this service)
Caller memory Information Stores popular numbers so you can retrieve them easily
200 name and number directory
Base Station: H29 x W130 x D130mm. Handset: H160 x W52.2 x D28.6cm
Graphic LED display
Eligible for International Delivery
GAP compatible Information Use more than one phone from the same base station: e.g. have one phone in the hallway, another in the bedroom
Last number redials Information Lists the previous numbers so you can redial them very quickly
Maximum range Information How far away from its base the phone will pick up a signal (normally 300m outdoors)
Maximum Standby Time Information The time the phone can be left off the charger (when not in use) before needing a recharge
120 hours
Maximum Talk Time Information How long you can use the cordless phone for, once it’s been fully charged
12 hours
Message Recording Time Information How many minutes' worth of messages can be recorded
30 mins
Model name / number
Phone set
Ringtones Information Choice of ringtones: polyphonic tones have a greater range of tone for better sound quality; with MP3 ringtones you can use music as a ringtone, such as a favourite song
15 (5 standard, 10 polyphonic)
SMS capable Information Send text messages from your phone to another SMS-capable phone
Wall Mountable
Base Station: 118g. Handset: 138g


Click & collect

FREE on orders over £30, £2 if you spend less. Collect from John Lewis or Waitrose tomorrow from 2pm
369 participating John Lewis and Waitrose shops

Collect + from a local shop from tomorrow - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops

Standard delivery in 5 working days


Named or Saturday UK delivery


Named day UK delivery pre-10.30am


International delivery not available

We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.


Find out more about returning products

Q & As

Rated 3.1 out of 5 by 9 reviewers.
Rated 5 out of 5 by Excellent value really useful Call blocker is great, so many nuisance calls blocked including international and withheld. 18 September 2014
Rated 4 out of 5 by Good Value Having read Which? Magazine reviews on 'phones, I was interested in this product and, with a JL 30% reduction at the time, I bought it. The installation was straightforward and the three sets were up and running in a very short time. The one problem I have at the moment is the limited number of rings on an incoming call before the answer machine clicks in. Maybe I need to talk to the help line. I was so impressed with the 'phones that I persuaded my neighbour to buy the set. He is 87 years of age, with a hearing aid, and he has been delighted with the 'loud facility' . Two very satisfied customers . 19 August 2014
Rated 2 out of 5 by Disappointing ! Good for what it says it is Answering machine and Nuisance Call Control BUT not many other useful facilities such as choice of ring tones for certain people. Didn't find instruction book particularly helpful either. 03 June 2014
Rated 1 out of 5 by I miss my old phone! I bought this trio as I thought it would be good to have three phone extensions all talking to each other, and the call-blocking feature looked good. What I have discovered is that they look dated and the inflexibility of inputting data into the address book has really upset me. I cannot have all capitals, so abbreviations like "VW" and "TV" come out as "Vw" and "Tv", which is tacky. I cannot find symbols like + and - and maybe there are none? The text is small and I cannot make it larger. There is nowhere to put email addresses or notes in the entries either. The system voice on the answering machine is female, but is low and quivery and of very poor sound quality. Maybe the phone is at fault? The phones easily fall off their stands. They look dated, and although they are suspiciously light (as in cheap), they look like an 80s mobile phone brick, and are made of thin plastic. Oh dear. I am just fed up with them already, and I usually enjoy setting up phones. I just wish I had not bought them and wonder why a quality shop like John Lewis sells this model. A real disappointment. I want my money back and a better trio, with or without the nuisance call barring. 16 April 2014
Rated 2 out of 5 by Second time lucky hopefully! Service from John Lewis excellent but the product integrity remains to be proven. The first batch had a defective handset. BT HELP LINE not particularly helpful, suggested we return phones to the supplier. This we did and given an excellent turnaround by JL with the new phones arriving the next day. The new set appear OK but luckily we have a JL 2 year warranty to fall back on if they fail. 19 February 2014
Rated 5 out of 5 by Peace and quiet at last! Bought these phones a few weeks ago from John Lewis specifically because of the Nuisance Call Control that they have and have to say that we are delighted with the way they work. The phones are quite big and chunky and not very modern looking, and you have to go online to use the full product manual, but they do exactly what they are supposed to do. Its extremely easy to block withheld/international or numbered calls so that you are not disturbed by them. If you get one of the blocked calls then the display on the phone will show that someone has called, but the phone will not ring. Perfect! Display is good with date/time and number of caller. If you want to stop nuisance calls then we would highly recommend these phones. 06 July 2013
Rated 2 out of 5 by No caller ID Fairly easy to set up. Worked well as a phone but the caller ID did not work so nether did the call barring. Caller ID worked on my previous and subsequent phone. BT took over a week to decide that the phone was at fault! 08 May 2013
Rated 5 out of 5 by Buy it for peace and quiet. I agree with all the points raised by Magician, it's cheap, tacky, old-fashioned and counter-intuitive to use. However, it gets 5 stars for stopping nuisance calls, I don't care what it looks like. Once you have found the online-only user-manual and carefully set it up to get rid of the annoying bleeps it makes, you get peace and quiet. It catches all international, witheld and unknown numbers, diverting them to the answer machine without disturbing you. Only people with a real number can get through. You can block 10 of these, 100 would be more use. The final drawback is that it cannot be wall-mounted. 08 April 2013
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Additional services

  • 2 year guarantee included

More than 10 in stock