I think Kory brought up an excellent point about people in poverty not always having access to phones, and by voting by phone I assume you mean a call in and not a text in. I just wanted to clarify.
To be quite honest, I did not know that this was something that happened in the B.C. election, and I would be curious about the lessons they learned and how effective this was. I definitely think that, for those who are remote and who do have a landline or a secure phone, I can only see this being a positive option to the various ways to vote.