Isn't it free for China Mobile to send voice messages in Liaoning Province?

This can be sent to mobile users all over the country, but if you are a registered member (3 yuan for one month), there is no limit to the number of voice messages you can use before the end of the year. Any number of voice messages you send are 3 yuan. If you are not a registered member, sending voice messages is a dime. As long as you call 12536 in Liaoning Province, it is free.