Pennytel/PennySIM/Smart Dial not working for (international) calls to NZ

[Justin]

I'm sure this is NOT a problem with the Pennytel android app...just
looking for others' experiences over the last few days.

I make a lot of calls from my PennySIM, using Smart Dial, to friends
and family on landlines in New Zealand. Over the last few days the
calls do not connect, I get a sound similar to an engaged tone (in
NZ). Calls to Aussie landlines and cellphones still work fine for me.

I have tried the SIM card in an old phone, dialling the Smart Dial
number and get the same issue hence my thinking its not related to the
Android phone or App.

All my phone numbers in the address book are in the international
format, e.g. +647XXXXXXX

Could someone try calling a landline number overseas, (preferably in
NZ) to see if its working for you? Thanks.

If others can still dial internationally, then my plan of action will
be to delete all the Smart Dial numbers and re-sync my phone.

Any other ideas out there?

Cheers
Justin