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

Click & collect from John Lewis or Waitrose shops Friday from 2pm
375 participating John Lewis and Waitrose shops

Collect + from a local shop from Friday - 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.

Q & As

Rated 3.8 out of 5 by 19 reviewers.
Rated 1 out of 5 by Kept failing after a day The main unit kept freezing and you had to take the batteries out and restart it to get a dialling tone or the buttons to register - returned to store 03 November 2015
Rated 5 out of 5 by Excellent Easy to set up and just does what it says on the box! 04 August 2015
Rated 2 out of 5 by BT6510 Bought this phone 2weeks ago,crackling on line during calls and after taking phone off to dust will continue to charge a couple of hours, after making a call it charges for up to 24 hours. Having had two BT phones previously thought I would buy an upgrade. Big mistake! Am now buying another of a different make. 18 April 2015
Rated 3 out of 5 by Disappointing Phone is easy to set up but I find the display hard to read. Don't hold the phone to your ear when it is dialling or you will lose your hearing but you have to have it up high to hear the person on the other end. The speed dial is deceptive as the first number is pre programmed to 1571 which is completely wasted if you are buying a phone with inbuilt answering machine - why would you be also using 1571 ? 09 March 2015
Rated 1 out of 5 by Erratic behaviour Purchased phone today but the handset does not ring if you have 'international calls' blocked and the call is from a mobile number, even though the mobile number is in the phone contacts. Called BT they said to reset the base unit which I did and it worked once then stopped again. BT help line were pretty useless and said they had never heard of this fault before, they really need to look at their BT forum for this phone as there are masses of complaints about this fault. 29 December 2014
Rated 5 out of 5 by Good reliable product. Phone is easy to use and reception is clear. Answering machine is reliable. 18 November 2014
Rated 4 out of 5 by BT 6510 digital telephone We are happy with the product. Good value for money just takes a little time to set up especially the answering machine part . Like the slightly larger buttons a day also the large numbers on the screen. We also like the fact you can put both home and mobile numbers under one persons name instead of having to do separate entries in reserved numbers list. 04 November 2014
Rated 4 out of 5 by Great phones Easy to use, with large buttons these phones are ideal for all ages. Good clear answer phone with long message time. Great Value for money. 04 August 2014
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Additional services

  • 2 year guarantee included

More than 10 in stock