If you want to add another condition to your rule, select Add condition. You can add multiple conditions to a rule but do this judiciously so your rules don't become overly complex.
Recording voicemail greetings for your business or personal life requires a separate list of priorities, because they are being used for two distinct purposes and will be heard by two very different types of callers. I have a friend with two cell phones - one for work, and one for personal calls - and if you call both lines, you would never know it's the same person. While the message on his personal line might not be ideal, he took the time to record a professional voicemail message for his business phone, which makes it stand out.

If you find that your business voice message is running a bit long, break it down into sections and decide which parts you can cut out to reduce the message’s length.
When I go to set up voice mail, it asks me to enter a voicemail code, add a 4 digit number and then it asks to confirm that code, I hit done and it tells me that voicemail is currently unavailable, try later.