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Callsure Business Telephone Services

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About Callsure Business Telephone Services

Callsure Business Telephone Serviced is based in Windsor and has over 20 years experience serving small business with all their Telecommunications needs. We attract customers in the UK and Internationally and specialise in companies with between 1 to 20 employees. We pride ourselves on giving a personalised service with an understanding of the needs of smaller businesses.

Location & Directions for Callsure Business Telephone Services

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36 Duncroft, Windsor, Berkshire SL4 4HH GB
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Services Callsure Business Telephone Services Offers

Voice over IP Services:Scalable, flexible, easy to configure, affordable and full of call management and call routing features.Work anywhere in the world, at home, in the office or on the move.Suitable for businesses of all sizes including sole traders, small to medium businesses and corporates.Single User - from £2.49 per user plus VATMultiple Users - from £1.99 per user plus VAT (2 - 10 Users)£1.49 per user plus VAT (11 - 50 Users)£1.39 per user plus VAT (50 - 100 Users)£1.29 per user plus VAT (101+ Users)Add phone numbers from:- over 650 UK Towns & Cities- Non Geographic (03xx & 084x)- UK Freephone- 1000s of International Cities- International National Rate- USA Toll FreeCall Plans available including:- Pay as you go- UK Unlimited- EU/UK UnlimitedFeatures include:- Free inbound calls to App on Smartphone/PC/Mac and VoIP handsets- Call Forwarding- Call Recording- Call Barring- Voice Menus- Time of Day Routing- Voicemail- and much much more

  • Business Broadband Services
  • Call Forwarding Services
  • Fax To Email Services
  • Hosted Voip
  • Landline To Mobile
  • Live Answer Services
  • Number Porting Services
  • Sip/iax2 Trunks
  • Voice Over Ip Services
  • Voip Handsets And Peripherals
4.9 Out of 5.0

Reviews For Callsure Business Telephone Services

Reviews for this business have been aggregated from multiple sources.

Based on 10 Reviews

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Mark Rivlin
Review source: Google Mark Rivlin Wednesday, April 24th 2024
John Webb is a throwback to an era in which service was the heartbeat of commerce – providing the kind of service that today's call centres can't emulate. Personable and friendly, John has provided excellent VOIP for my business over 12 years. I heartily recommend Callsure.
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Dean Hyde
Review source: Google Dean Hyde Saturday, January 14th 2023
Absolutely fantastic service and gave me some great advice about how to solve a problem regarding my landline number. I wouldn't hesitate to use callsure again in the future and would recommend them to anyone. Thank you again.
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Mark David
Review source: Google Mark David Monday, August 30th 2021
Mark David opted not to leave a text review of Callsure Business Telephone Services
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Alison
Alison Wednesday, July 7th 2021
Helpful and friendly service Recently I had the pleasure of dealing with John from Callsure who was super helpful in solving my business dilemma. I needed a service that allowed me to received calls from two different organisations on the same handset - but I also wanted to clearly find out which one was ringing me so that I could answer appropriately. John set me up with two landline numbers and a call whisper feature that tells you which organisation is ringing before you answer. I also was able to customise the voicemail message that is heard if I didn't answer in time. A very professional and cost effective service that will be invaluable to my business. Thank you Callsure, I wouldn't hesitate to recommend your services.
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Alison
Alison Wednesday, July 7th 2021
Helpful and friendly service Recently I had the pleasure of dealing with John from Callsure who was super helpful in solving my business dilemma. I needed a service that allowed me to received calls from two different organisations on the same handset - but I also wanted to clearly find out which one was ringing me so that I could answer appropriately. John set me up with two landline numbers and a call whisper feature that tells you which organisation is ringing before you answer. I also was able to customise the voicemail message that is heard if I didn't answer in time. A very professional and cost effective service that will be invaluable to my business. Thank you Callsure, I wouldn't hesitate to recommend your services.
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Dominik Heckner
Review source: Google Dominik Heckner Wednesday, January 8th 2020
John is a top man! I've always had corporate IT help me on phone / network issues and now for the first time as an entrepreneur I was setting up my home office. Calling around the big companies, I was quite frustrated that noone had the knowledge and/or willingness to talk me through it. John suggested the right equipment for me and really went the extra mile on helping me with every detail of the setup. He's really gone the extra mile and deserves all 5 stars wholly!! Thank you, Im really chuffed about my professional setup!!!
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michael cosham
Review source: Google michael cosham Thursday, July 26th 2018
We've have used Callsure Voip phone services for many years and always have great service with expert knowledgeable staff, would highly recommend. Thanks from UK Cellar Cooling ltd
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M Ellis
Review source: Google M Ellis Saturday, July 22nd 2017
The proprietor, John, is an incredibly knowledgeable and helpful person. He had an answer for every question, and made everything sound easy. I can highly recommend the services offered, and the quality of support offered is second to none. And yes, they save you money, lots of it!
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Holland Park Childcare
Review source: Google Holland Park Childcare Friday, February 19th 2016
I was able to keep my old telephone number when I moved to another area, this was so important for my little small business. I had two little business numbers coming to my phone and call whisper service made it easy for me to respond correctly to any caller.
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Jeff Williams
Review source: Google Jeff Williams Friday, October 23rd 2015
I work for myself and wanted to keep my existing landline phone number when moving so I did not have to reprint business cards and have to try to contact so many of my clients. Callsure made porting my number easy and I was able to divert the calls to my mobile while I am out :)
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More About Callsure Business Telephone Services

Callsure Business Telephone Services can help you keep your existing phone number when you move premises.
Our Number Porting service allows you to move your Landline phone number away from your existing provider & use it no matter where you are physically located in the UK or across the world.
This allows you to receive calls to any device for a fraction of the cost. You can also make outbound calls & display your existing number as your Caller ID.
Number Porting can be used to retain a phone number in these circumstances:
- Moving premises (especially moving outside your current local telephone exchange area)
- Giving up traditional broadband services and replacing them with either Fibre to the Premises (FTTP) or a 4G/5G Router
- Receiving calls only on a mobile phone
- Making & Receiving calls on a smartphone or tablet using data
We can Port Numbers from almost any Telecoms Service Provider in the UK & many others internationally.

Callsure Business Telephone Services Frequently Asked Questions

Our VoIP Services can be used on:
- Our Smartphone Apps (Android/IOs)
- Desktop Apps on PC/Mac/Linux
- Cordless VoIP handsets with base stations
- Executive VoIP Deskphones
- VoIP Conference Phones
- VoIP enabled Door Entry systems
We offer single user services from £3.48 per month plus VAT and call charges. This includes a standard UK phone number from any one of over 650 UK area codes. The service also comes packed with dozens of business grade features.

Our UK Unlimited service costs £15.98 per montu plus VAT and allows you to call or divert to UK Landlines and Standard UK mobiles free of charge.

Our EU/UK Unlimited plan costs £25.98/month plus VAT & allows calls & diverts to EU/UK Landlines & Standard EU/UK mobile
We can setup a VoIP service within 15 minutes of you opening an account
Our VoIP services are built on Amazon and Google Services core infrastructure. This gives almost perfect resilience and we are achieving more than 99.99% uptime.
Yes. It takes approximately 3 weeks to move yoir number. Please call 01753 624121 for more details.