Some of you may be aware of this offer but for those who aren't: TalkTalk is offering 500 Global Minutes Boost for £5/month on their Essential tariff. I know most of us on this forum call Pakistan & India among other hot destination for Free
but it could be of use to some of us.
Have a look here for valid destinations:
http://sales.talktalk.co.uk/pricing/info/international-dest-100.
It can be activated online via your account and can be cancelled anytime. So effectively you can call
Pakistan for 1ppm which otherwise would cost you way more than that.