so one of the bigger problems related to moving abroad is related to your phone number. if you, like me, have used the same number for a while (13 years!), you probably wouldn't want to let go of it that easily. also, you probably have stuff linked to your mobile number that you simply cannot or sometimes would rather not link to your number in a different country. in general, you have three options:
- activate international roaming, and keep your old number active. this might turn out to be expensive. not sure about other countries, but in india it's way more expensive to keep a number active for an extended period on international roaming. and then you need both sims (old and new) to be in a phone to be useful. my phone forces me to choose between a second sim and a memory card, and i would be quite sore if i had to take out my 128gb memory card out!
- find a way to forward everything without having the sim in a phone. again, calls are expensive to forward, especially if the majority of them are spam calls. i have no idea if forwarding sms without the sim being in a phone is even possible!
- give the sim to someone trusted (either pop it into their dual sim phone or give it to them with a phone that's frequently checked) and keep it active remotely. this obviously works only if you have someone trusted who is willing to take calls on your behalf.
- the person needs to take calls on your behalf (obviously!)
- sms needs to be forwarded somehow.