Hi,
I'm currently on an Optus postpaid line with no contract lock in. I'm going to be traveling overseas to Singapore and the US for work for at least 3 months, and it's likely to be extended as well and potentially could be long term 1-3 yrs. I still want to retain my number as I've been using it for ages, and do not want to cancel it. I'll obviously be getting a prepaid/postpaid sim in the new countries im in, so I'm wondering if anyone knows which service provider is the best for my situation.
I use apps like Whatsapp and such, so it's not like I need daily roaming phone calls, and all the current plans on Optus seem quite expensive. It's really just to receive the irregular calls from old friends, or perhaps services that I still keep, have access to my voice mail and SMS OTP codes etc.
Anyone have insights on which telco has something suitable?
Stay close to a water source, i.e. a river or similiar