I always thought I had a good deal with my broadband package. Unlimited broadband and landline calls plus 200 mobile minutes for around £37 + VAT. Just phoned them to add a mobile sim and noticed on the website that they now do unlimited broadband, plus unlimited landline and mobile calls for £27.50 + VAT. So I've switched to that (12 month contract) and added the sim (3gb + unlimited calls and texts) for the same price I'm currently paying. Happy days.
The provider is TalkTalk Business but, as far as I'm aware, are not on the same network as domestic talktalk, which I probably wouldn't touch with a bargepole. For the business side they took over a network called Opal Telecom, which was exceptionally good. In 2 and a half years I've had one outage, which was caused by a thunderstorm and blew my router.
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John
Any advice given is for general guidance and professional advice should be sought applicable to your circumstances.