Sending commercial advertisements on mobile phones will block the short message function. What are the ways to send business short messages?

Landlord Ming Sheng, mine has also been blocked, and sending hundreds of mobile phone messages will also be blocked. If I unseal it, I have to go to the business hall to sign a letter of commitment. I now use Haoyu Infolink to send messages to customers, which is a special platform for mass short messages. It feels good to use, and it's cheaper than a mobile phone, so don't worry about the title. You can refer to it