Is there a time limit for iUU to send voice messages?

In the 2G network, in order to maintain a good user experience, we provide a limit of 20 seconds. The basic spirit of short messages is conciseness. Sure, you can have a drink of water.

Try to talk about short messages, which is the advantage of unlimited monthly delivery. When the 3G network is actually available and the network transmission speed is advancing by leaps and bounds, we will certainly consider relaxing it. such

You can sing a song to others. But it's not cool for others to listen to long recordings, is it?