[Huggybear]

My guess regarding the + sign is that's a symbol for international calls. You may be inadvertently confusing your phone into thinking it's trying to dial an international number when you are trying to dial US or Canadian (although it's technically international, we share the same country code - 1 -).

I would suggest checking your international phone settings and see what you have there. Go to phone, CDMA tab, Options, Plus Code Dialing and see what you have there. You may want to try disabling it.