I've used dialtosave for many years now to call family and friends all the time.
It works and its much cheaper than using my mobile via my own network. I didn't want to swtich my sim card which is why i started using dial2save, but it turned out to be great decision.
Only thing is that sometimes it takes a few seconds for the call to connect, but a few extra seconds at 1 pence per minute is ok.
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