eSim/wifi calling solution for travel
This may be duck soup to many, if not most, but it was an eye opener to me.
Needed a solution for upcoming trip from Australia to US for extended stay. One issue is text based 2factor messages to Telstra prepaid phone number. In some cases, no alternative method of authentication is offered, meaning I could not log in while overseas.
Bottom Line - Using wifi calling for my Telstra prepaid number and esim for US Mint Mobile phone plan, will have mobile coverage in US including data, and maintain Telstra connectivity when on wifi for total of US$45 for 3 months (actually 6 months with Black Friday offer) in US and no additional cost on Telstra.
Rich Demuro provided the answer in a round about way without providing details.
While in Australia, installed Mint Mobile app on iPhone. Accepted offer to try Mint Mobile (MM) for 7 day free trial. Installed MM eSim. Here is where it gets tricky. MM app tried to activate eSim, but no T-Mobile network available, which it needs to activate. Went into Settings/Mobile/‘MM eSim’ and turned on “Wifi Calling”. eSim was activated. Signed up for 7 day trial.
Tested it out. Australian Telstra Prepaid selected for Mobile Data and Default Voice Line. MM eSim selected “On”. While on wifi, calls and messages to MM US number come to phone immediately. If not on wifi, messages come to phone as soon as I connect to wifi.
Have now signed up for 6 month MM plan at 50% off Black Friday price. Setup MM Voice Mail and tested it out. Called MM number and left a message. Turned on MM eSim and while on wifi, could access voicemail.
After landing in US, will switch to MM eSim as Default Voice Line and Mobile Data, with Telstra prepaid “On”, “Roaming Off” and Wifi Calling “On”.
Backup method in place too. Another Rich Demuro idea presented when he filled in for Lea several years ago. Using Airalo app and US data only eSim for backup data connection if necessary. That providers access to Skype for phone if needed.