"£1 FREE credit so you can get started straight away
Great rates from just 1p per minute
No connection fee* (calls made via App only)
Easy to use - just tap the app whenever you want to make an international call
Contacts appear in the app so you can dial straight away – no need to manually enter the number you are calling
Check your balance and destination rates
Access number is free for Tesco Mobile customers"
http://phone-shop.tesco.com/international-calling-cards/tesco-international-call...You can call UK Numbers as well as intl ones from the app. 4p connection. I wonder if you could use it from Tesco Mobile Payg Phone to get your landline calls down to 4p connection 2p a minute. Given that the access number is free from Tesco Mobiles.