Ban on recording without consent is unconstitutional, US court rules
In Canada you can record someone (phone call, in person, etc) if just one party consents to the recording.  In other words, if I'm a phone call with someone, even if there are several people on the call, it's NOT illegal for me to record them, as long as I'm a participant in the call.  It's called the "one party consent" exception.  I have no obligation to ask, or tell the others on the call that I'm recording.