I've been asked to (and have done) IVR phone system and voicemail messages. Each time, were for companies I worked at.
I used to sing in choirs and have had several solo parts, but after being relocated for my daytime job, I haven't found any choirs to join.
If needed, I could sing or hum something for the vocal part that you need.
I haven't had any professional training yet.
All through High School and College, I performed in a few musicals and plays. As I mentioned above, I've also been a member of a few choirs and have had several solo parts. I can sing both Alto and Soprano ranges.
I'm an avid reader and I used to get picked to read book parts in my High School and College classes. I started off pursuing a major in music, but ended up with another love of mine, computer technology. I feel that doing voice overs will help me combine all of my passions.
Unfortunately, as I stated above, I'm just trying to get into this industry and I don't have a studio right now. Just a computer with a very good headset/microphone.