I have a confession to make: I haven't recorded a new voicemail greeting in nearly a decade. Since then, I've (hopefully) become more articulate, poised, and self-assured. But hear my voicemail recording, and you'd think I was still new to the work world, a little unsure of myself — and probably not an authority.
Once you have your message, you need to actually record it. The exact process varies depending on whether you’re using a cell phone or office phone, but here’s the basic process: Press the voicemail button, or press and hold 1 on most cell phones. Enter your password. Record your message. Listen to the message you just recorded. Follow the prompts to save your message. Following Up on Voicemail Messages

Mobile Phone Message Example Scripts, Voicemail Texts and Ideas The following scripts and text ideas can be used for almost any kind of Mobile Phone Message ( Voicemail ). You can switch the language of the text blocks by pressing the tab button.
With all of the libraries installed and the Python code modified, our app is ready to accept calls and record voicemails. But it can’t quite do that just yet. There’s one more step: Twilio actually needs to know where on the internet the Raspberry Pi is running. Since this is a local server, that’s a bit tricky, but there’s a simple solution called Ngrok.