Hi, i have a telus phone with telus plan
and I have a phone that my friend purchased through bell.
His phone's contract expired so he gave it to me.
I was wondering if i could swap my telus phone with the bell phone and use it for my telus plan?

so
in the beginning it was, telus phone + telus plan
but now i want to use, bell phone + telus plan

I know that they both use CDMA technology so will they be compatible if i unlock the bell phone?