Iphone can't send text messages How to enable MMS?

First, the MMS service of China Mobile is an old service. At present, it is renamed as incoming call reminder in communication assistant, which means that when the mobile phone has no signal or is turned off, someone calls and will receive SMS notification later. \x0d\ II. There are generally three ways to change business status: \x0d\ 1, and go to the nearest mobile business hall to find a teller to handle it. Note: Take your ID card, just in case. \x0d\2. Call 10086 and transfer to manual customer service. \x0d\3. Self-service in online business hall. Find the "Unified Business Unsubscription and Query" option. \x0d\ Third, iphone can't send text messages. To enable MMS, you can try to open MMS in the above way.