http://www.equalityhumanrights.com/en/aboutus/helpline/pages/advicefromourhelpline.aspx

About the helpline

An advisor working on the Equality and Human Rights Commission helplineThe Equality and Human Rights Commission helpline is here to give information and guidance on discrimination and human rights issues. All of our helpline staff have been specially trained to provide this service.

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Call charges

Calls to  0845 numbers are charged at Local call rate tariff if you are using a BT landline.  Call charges from other telephone operators and mobile networks will vary. To find out exactly how much you are paying for 0845 calls you should consult your telephone provider or their latest published tariffs.

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Clearly they don't consider discrimination of non-BT users as an issue.  ::)