@raymondzhou122
It depends on how long your trip to the US will be for and how you will need to use the service? Are you going as a tourist? Just needing basic services and some mobile data here and there when you cannot connect to free wifi? Or do you need a lot of data for your regular daily activities? Or are you there on business?
The current workaround for the loss of the 3G network affecting your ability to use voice services is to download a voip provider app such as textnow or fongo and choose a canadian phone number. Then upon departure or arrival in the US purchase a 10 day US Roaming Data add on ($20/1gb, $15/500mb, $10/250mb or redeem points if on that program ($)15pts/1gb, ($)10pts/500mb, ($)5pts/250mb).
Regardless you will always recieve incoming pm SMS on your phone. With US Roaming data you can send/recieve voice calls and SMS with your voip provider (fongo charges for outgoing texts). You will also be able to send/recieve MMS, RCS and iMessage. And of course you will have mobile data. If possible having the $15 plan in place while in the US makes it more affordable.
If your travel time in the US is close to or more than 30 days then a local sim card can make more sense. Forwarding you pm phone # to a voip app # before leaving Canada and removing the sim card so it does not connect to a US tower**and default your forwarding back to pm voicemail is paramount and/or leave it with a trusted friend or family member in case it needs to be reset.
Then depending on length of stay in the US you can choose from many local providers such as:
**A member willing to test to confirm if call forwarding defaults back to voicemail if the pm sim card connects to a US tower w/4G LTE only would be awesome!!
