Glad I didn't inconvenience you.
Me, on phone, to professional contact who had phoned me for the first time and was riddling off a lot of complex information: "We haven't met, so I'm going to let you know that I have a cochlear implant-"
Him: "Oh, that's okay."
(I went on to tell him that I sometimes found the phone challenging but if he spoke slowly and clearly we should be fine. It didn't occur to me until later what an odd response that was.)
Incidentally, a couple of months ago someone from our HR department (who knows me and knows I have a CI) called me about a matter related to HR, but not me personally (I was doing some research about employment standards). She said, unprompted "If I speak too quickly or you don't understand something, just let me know and we'll go over it again." She is literally the only person I work with who has ever made that outreach to me during a call unprompted. It was much appreciated.