By default, the iPhone lacks call recording functionality due to legal and security barriers. However, if you want to record calls on iPhone, there are some software solutions available for support.

Explore the Top 3 best iPhone call recording software compiled and curated by Mytour below!
1. Call Recording by NoNotes
You can download Call Recording by NoNotes here.
https://itunes.apple.com/us/app/call-recording-by-nonotes/id522637615?mt=8

With this software, you need to sign up for a NoNotes account and use your email and phone number to register. Additionally, the software features a handy function of recording calls and translating them into other languages (Vietnamese language support not available yet).
2. Call Recorder: Record Calls
Download Call Recorder: Record Calls from the following link:
https://itunes.apple.com/vn/app/call-recorder-record-calls/id890333120?l=vi&mt=8

With Call Recorder: Record Calls, you simply need to register an account using your phone number. Initially, the software will provide you with 50 coins, equivalent to 1.1 minutes of call recording. If you wish to record calls for a longer duration, you will need to purchase additional coins.
3. TapeACall: Call Recorder
Discover and download TapeACall: Call Recorder here.
https://itunes.apple.com/us/app/tapeacall-call-recorder/id573751328?mt=8

TapeACall: Call Recorder is an excellent and free call recording app. For longer call recordings, consider purchasing TapeACall Pro ($9.99). However, please note that this software is not available on the Vietnamese AppStore and can only be found on the US AppStore. To download this software, you will need a US iTunes account.
With the top 3 iPhone call recording apps provided by Mytour above, you can confidently capture important information during urgent calls. Wishing you success!