A formal voicemail greeting is one with a professional tone. It could be for a business or for personal reasons. Formal voicemail greetings are designed to impart a sense of authenticity. They leave the caller with a sense of trust in your abilities, whatever they may be.
-Hello, this is ________. I’m not home right now, but I can take a message. Hang on a second while I get a pencil. (Open a drawer and shuffle stuff around.) OK, what would you like me to tell me?

Of course, we want to know as soon as an incoming voicemail is saved, so again, it’s Twilio to the rescue. By adding a few lines of code to our Python script, Stacey and I each get an SMS notification telling us there’s a new message. Note that Twilio’s API requires a separate call for each message to be sent, which is why the similar code repeats once for Stacey’s phone number and then again for mine. If you plan to send bulk messages from Twilio, I expect that you can build a list of phone numbers and loop through them with the API call. Since we only have two contact numbers and don’t expect to add any more, I decided not to loop through a list of two elements.
Messages on Hold – continuous loop of music and messaging that plays as callers wait to speak to a business representative. Messages On Hold present a mix of marketing messages and customer service information that is mixed with music to play in a loop for callers waiting on hold.