Be brief. Don’t make your listener resent you for leaving a 5 minute long message. People are busy. Listening to 5 minute phone messages is not on the top of their priorities and wastes their time. Many callers seem to think they are the only person in the world leaving a voicemail for a particular person. Yet a dozen other people feel the same way and a man ends up holding the phone to his ear for an hour.
Hi there, If you're "In call" it means the call has connected and the person you're calling has answered the call. If you're making an "outgoing call" it's still ringing and they haven't answered yet. How do I delete a message in my outbox?

5.) If you’re calling a home line, and know the family, it’s nice to say a group “Hello” before leaving a message specifically for the person you called. Say something like this: “Hi everyone, it’s Maralee. Hope you’re enjoying Spring Break! Janet, I wanted to see if you and I could meet for lunch one day next week. My schedule is pretty open, and we could pick a restaurant near your office. I know your lunch schedules are tight. I’ll give you a call back at 7:00 tonight. Or I’m around all afternoon, so give me a call!” (Boy, home lines are becoming rare, aren’t they? We gave ours up a couple of months ago.)
I remember hanging up the phone every time I heard a Voicemail message. I froze with fear and couldn’t speak.