However, as of February 2021, reviewers share the same concern as was expressed towards Slydial — it only works sometimes. WhatCall imports all of your contacts, so all you have to do is open the app and tap a contact. From there, you will be directly connected with their voicemail. WhatCall is a cell-only app, costing $0.99 on the iOS app store.
A digital recorder is nice and all, but if you plug a recorder directly into an iPhone using a 3.5mm audio cable, you're not going to hear the call. Using the iPhone headphone jack—assuming your iPhone is so old that it even has one—cuts off the speaker. Get the Recap-C, a $99 adapter that plugs into an older iPhone's 3.5mm jack, with output to a headset as well as to a recorder. The secondary recorder—connected via a 3.5mm male-to-male auxiliary audio cable—is up to you. It could even be another iOS device (or Android or PC, but stick with the digital recorder for simplicity).

Once you’ve done that, head to the settings menu (the gear icon) on the Google Voice homepage and select Settings. Then, click the Calls tab. In the section “Call Options,” check off “Enable recording (4), Switch (*) and Conference options on inbound calls.” With this setting selected, whenever you make a Google Voice call on your phone, you can tap the number 4 on its dial pad to start recording.
Hello, you have reached the dental office of Dr. X. We are busy assisting a patient now, but will call you back as soon as possible. Please leave your name, reason for calling, and your number. If this is an urgent enquiry, please call 911. In this case, the dentist is giving a reason for not being available and they’re providing a way to prioritize the patients who need the most help. They’re also leaving an emergency number for the most severe of situations.