Mobile-prompts to save incomming talk

I saw in the internet that there is mobile phone which after conclusion of the talk will prompt the user to ‘save’ the concluded talk! That is: after the talk is complete and after the phone is connected by the caller (not the receiver) it will ask ‘do you want to save this call’? I do not remember the phone name. Can some help me please. Thank you.
Answer #1
Try this from Google app store called “Personal Call & Voice Recorder”. This works on android devices, but I’m sure you can find similar apps for other devices.
https://play.google.com/store/apps/details?id=com.soundmobilesystems.android.recorder&hl=en
Answer #2
Thank you.