According to your description:

It is not possible. They are all cdma2000, but the frequency bands are different. Nokia Lumia 1020 does not have a telecom version. It is recommended that you buy other telecom versions of mobile phones.

The three major mobile phone network operators in Canada are Rogers, Bell, and Telus. All three are national operators, and their network coverage varies slightly in individual provinces, but it is difficult to say who is better and who is worse.

Rogers: In the 2G era, the GSM network was monopolized. In the 3G and 4G era, the monopoly advantage was broken after all operators used the same standards (HSPA and LTE).

Fido: After being acquired by Rogers, it became a low-cost brand. In addition to cheaper rates, it uses the same network facilities as Rogers.

Bell: 2G provides CDMA networks, 3G 4G uses HSPA and LTE, and is Rogers' main competitor.

Virgin Mobile: Bell’s low-cost brand that rents Bell’s network. Provides the same network standard as Bell.

Telus: 2G provides both GSM and CDMA, 3G 4G uses HSPA and LTE. Bell and Telus have signed a network construction agreement. Western Canada is dominated by Telus base stations, and Eastern Canada is dominated by Bell base stations. Mainly, the two companies share network hardware facilities.

Koodo: After being acquired by Telus, it became a low-cost brand. It is famous for providing no-contract services. It is the first choice for minors, no credit history, and users who do not want to sign a mobile phone contract.

Eastlink: A company that has newly obtained a wireless operator license. It only provides HSPA and LTE networks, not 2G. The service area is limited to Atlantic Canada, and it rents roaming services from other operators in other areas.