I used to work in the same office as an English cis-woman who had a lowish toned voice and she was forever getting mis-gendered on the phone. We used to laugh about it actually. Telephones do not pick up the higher tones in any voice very well so they tend to make everyone's voice sound not the best.
My job involved using the telephone a lot so by sheer practice I learned how to sound more or less acceptable on the phone. Face to face no one had any problem with my voice, though clients were always asking at reception for the 'tall Dutch lady' (I'm not Dutch) and even some Dutch people would ask me if I'd immigrated from Holland. Don't ask me what I was doing, that's just how my voice sounds!
Sometimes, especially if I was tired, folk would get my voice wrong when I was using the phone. Usually when I gave my name which is 'Anne' by the way, I would get 'Ian' back from the person on the other end. I made a habit of always correcting them even if I had to spell my name out to get the point across. Sometimes the caller would get a bit too invasive over why my voice was the way it was and I would simply tell them that I was going to end the call which usually worked just fine to get them back on track.
Would I have ever gone back to living a lie because of my voice. The quick answer to that is 'No'. Nil bastardo carborumdum was my motto back then, - don't let the b@stards grind you down. True enough I became so anxious sometimes I was terrified to speak during my first two years, but I knew for certain that going back to trying to be a fake male was the worse option.
