Well, they are all different things.
1) Data Roaming setting under the communication settings. Which allows the local (USA) SIM & network to work in Canada or Mexico. Same as travelling aboard with home country SIM
a) pre-supplied complimentary AT&T SIM card and data package does not include data roaming. It does not even allow Sensus to be AP (Hotspot).
b) If you subscribe to AT&T after complimentary package ends, you can enable the Data roaming and travel to Mexico or Canada, car will have internet but you might end up with huge bill depending on the plan you have.
2) Not sure if VOLVOs in USA can or cannot work with T-MOBILE, MINT SIM cards although both are GSM network same as AT&T. Volvo might have locked the modem only for AT&T sims like purchasing a network locked phone from AT&T or any other.
3) VOC and APP does not work if SIM card is removed from the car. I tested it. I removed the SIM card from the car. My app on the my phone could not reach the car!
I don't know if VOC and app would continue to work after my complimentary AT&T data package ends.
a) VOLVO has special agreement AT&T and it would only allow VOC communications after complimentary AT&T data package ends.
b) I will need to purchase data plan from AT&T for the cars's SIM
c) I change the SIM to T-MOBILE or MINT both have cheaper plans and Car would accept.
4) My car is used certificated pre-owned with complimentary VOC subscription still valid. The previous owner already had the VOC connected to their VOLVO ID.
I called the VOLVO and they disconnected car from the previous owner's account and connected to my account. VOC subscription is tied to VIN of the CAR not to a person or any VOLVO ID account. The same car VIN can be connected to multiple VOLVO ID accounts for example, mine and my spouse's accounts. After the complimentary VOC ended, I purchased 1 year subscription and I had to reconnect and reregister the CAR to my VOLVO ID and App on my phone.
1) Data Roaming setting under the communication settings. Which allows the local (USA) SIM & network to work in Canada or Mexico. Same as travelling aboard with home country SIM
a) pre-supplied complimentary AT&T SIM card and data package does not include data roaming. It does not even allow Sensus to be AP (Hotspot).
b) If you subscribe to AT&T after complimentary package ends, you can enable the Data roaming and travel to Mexico or Canada, car will have internet but you might end up with huge bill depending on the plan you have.
2) Not sure if VOLVOs in USA can or cannot work with T-MOBILE, MINT SIM cards although both are GSM network same as AT&T. Volvo might have locked the modem only for AT&T sims like purchasing a network locked phone from AT&T or any other.
3) VOC and APP does not work if SIM card is removed from the car. I tested it. I removed the SIM card from the car. My app on the my phone could not reach the car!
I don't know if VOC and app would continue to work after my complimentary AT&T data package ends.
a) VOLVO has special agreement AT&T and it would only allow VOC communications after complimentary AT&T data package ends.
b) I will need to purchase data plan from AT&T for the cars's SIM
c) I change the SIM to T-MOBILE or MINT both have cheaper plans and Car would accept.
4) My car is used certificated pre-owned with complimentary VOC subscription still valid. The previous owner already had the VOC connected to their VOLVO ID.
I called the VOLVO and they disconnected car from the previous owner's account and connected to my account. VOC subscription is tied to VIN of the CAR not to a person or any VOLVO ID account. The same car VIN can be connected to multiple VOLVO ID accounts for example, mine and my spouse's accounts. After the complimentary VOC ended, I purchased 1 year subscription and I had to reconnect and reregister the CAR to my VOLVO ID and App on my phone.