Additionally I cannot call my uncle's German landline number from my phone in the UK - I get a voice message saying that I have used up my allowance? Is this because I have my out-of-allowance cap set to £0, and any calls/SMS to a foreign number are not included in the base allowance?
Best answer by terrywebbs
You are right for the most part yes you may need to adjust the out of allowance cap for some numbers but not all.
Calling abroad from the UK is considered an international call and subject to international call charges (even if you're calling one of our Inclusive roaming countries). as detailed in the following link: https://www.idmobile.co.uk/help-and-advice/international-and-roaming-charges
It is always good ideal to set a small cap limit on the account so you can use other services outside of the allowances, leaving it set at £0.00 will mean you wont be able to send picture messages etc.
Please also check and set up the following APN settings:
Manual APN Settings
Username leave blank
Password leave blank
MMS Proxy mms.idmobile.co.uk
MMS APN Username leave blank
MMS APN Password leave blank
MMS Port 8799