I'm having the same 'issue'. After almost 2 months on T, my voice has started to change. At times it sounds really low (not quite male yet, but low for me nonetheless) and most of the time its just my normal regular voice. It is annoying, yes, but people will have to get used to it. Do your friends/family know that you are changing? Having a low voice at times should not be a problem. And strangers...Well, they don't know your 'real' voice anyway, so I doubt they care much.
Its an awkward phase, that's for sure. And from what I've heard, it can take upto 1-2 years before voices do not go up and down to the extreme anymore.