Forget about messing around with apps. There’s a powerful voicemail handling system built into nearly every big carrier today — and that system almost always includes a system for recording a voice message and sending it directly without ringing the target phone. I will walk you through the process of doing this on Straight Talk (since that happens to be my carrier) but most carriers will have similar systems.
You can’t always get to the phone when clients, partners, investors, or colleagues call you. When this happens, a professional voicemail greeting helps you make a positive impression and tells them what to do next. There are a variety of ways to convey your message. If you’re not sure what type of message to record for your own voicemail box, here’s a definitive guide to get you started.

When you travel outside your home country & you have Data Roaming turned off, you will still be notified via Apple Visual Voicemail when you receive new voicemails.
Rev, our top-rated transcription service, offers an app to facilitate recording incoming and outgoing calls by merging in a Rev recording number on a 3-way call. You access the recordings in the Conversations area of the app.