No. This question comes up time and again, and our answer is always the same. The use of NGNs for cheap calls abroad is a legitimate use, and we will not attempt to find alternative numbers.

Admins: can something be put in the guide about international calling numbers and the fact that we won't find alternatives for them?

Jade
Don't take it as a telling off, but please understand the logic of the situation.

However, in answer to your question, yes there is an alternative number.
Your number is run by http://www.firstnumber.co.uk/international-calls/cheap-calls-to-Kenya/ at a price of 5p per min.
You could try any number from this page http://niftylist.co.uk/calls/to/kenya/landline/ ; starting from 3p per min. A 40% saving immediately.