Not able to make calls from abroad using iPhone

[JamesBo_2734922]

I have a Smarty unlimited sim and it states I can make calls from abroad but not able to use. What might I be doing wrong

[MSF]

@JamesBo_2734922  Potentially a number of issues here.

1. Where is 'abroad'? If it is the EU, then your smarty plan should work if........(see point 2)

2. Have you changed your APN to mob.asm.net ?

3. If not in the EU, do you have add-on credit to pay for the calls?