question on dialing when using SIM from different countries

[thor777]

so I had my phone unlocked for a trip to Taiwan 2 weeks ago. I popped in the local carrier's SIM and it works great. However, every time I need to make an outbound call, I have to type the number like I was calling from the US (+866........). It's really annoying cuz when I miss a call I can't just hit talk to call back the missed number. I have to retype the whole thing with the international crap in front of it. Is there any option so I don't have to type the +866 stuff every time? I tried changing the regional settings to Taiwan but that didn't help.