Doesn’t WhatsApp have a time limit for voicemail?
If it has, it is too a long one. My husband routinely receives voice messages that are, combined, longer than 8 minutes. Dale Carnegie must be rolling in the grave....
The person speaking simply keeps the mic icon pressed. Whatsapp breaks the whole voice recording into 2-minutes audio tracks, which are then played non-stop on the recipient's phone.
Most transcription softwares, stop at 50 seconds of audio.
The issue with voice messages is that they are SO easy to grab, that people don't put any care in the effectiveness of that message. Most messages I receive are 80% about "uhmm ehm, maybe, I don't know... I was thinking... I am not sure...". Whereas written communication involves clarity of mind, because it is also harder to write, so you don't want to write a long poem for a brief message.
I once invited a friend over for dinner on a certain night, and she replied with a 2+ minutes voice message. I hit play but then I started working at the computer because what I was hearing wasn't compelling nor worth my attention. At a certain point, I picked up the phone for something else and the audio stopped. Completely forgetting about it, I moved on with my life, and on that day I spend the afternoon cooking a luscious Arabic dinner. But when my guest didn't arrive, and I messaged to ask about her whereabouts, she said she had told me that she was not free on that day.
I went back and finally listened to the whole 2+ minutes of voice message, and indeed she said, at the very end, that she couldn't accept my invitation. She spend 2 minutes talking about her stuff, how many things she was busy doing, "oh my gosh" "I don't know how I am gonna do" etc. and delivered the actual reply (I can't come) at the very end.