Press and hold 1 on the dial pad. Next press the * key, then press 3 to be brought to the Greeting page. Finally, press 2 to record your own personal voicemail message. Simply press the # key when you are done recording.
5 Best Methods to Record Phone Calls on iPhone. Using Voicemail. Using Google Voice. Using a Third-party call recorder. Using the speakerphone function. Using an external recording device. Method 1. Using Voicemail. Using voicemail is the simplest way to record phone calls on iPhone without installing any app.

2. Click on the "Voicemail" icon in the bottom right-hand corner. Tap on "Voicemail" to open up the voicemail menu.
2. Enter the destination you wish to transfer the call to, then press [SEND] softkey. 3. Once the receiving party answers, announce the call. 4. To complete the transfer, press again. If you hang up before the call rings, the transfer will fail and the call will be disconnected. Direct to Voicemail: Transfer a call directly to voicemail 1. Press . 2. If a phone rings once and then goes to voicemail or rings only briefly, it You can't definitively know the cause of a phone barely ringing and going to voicemail because neither a phone company nor the phone's operating system provider will tell you if your phone number is blocked.