What is the use of SMS reply path?

Short messages on some mobile phones have the function of reply path. If on is selected, the receiver will use the number of the SMS center you just sent when using the "reply" function (the number of SMS centers varies in different cities). This can improve the recovery speed.

However, this function needs network support, so it may happen that when you send a message to the other party from other provinces, the direct reply cannot be transmitted, which is a problem of network compatibility. This is the need to turn off the SMS reply function or send it by sending a new SMS. Sometimes when someone sends you a text message, you can't reply directly after clicking in. This is because short messages are sent through the information center numbers of various cities. When you set this reply path, this function will be turned on. In Nokia, this function is replied through the same information center, so when the other party receives your message, it can't reply directly. You may need to rewrite the message and enter your number. If the network is not compatible, you will not be able to reply to short messages with your mobile phone in other provinces. So it's best to close it. Even if it is turned on to improve the recovery speed, it cannot be turned on. Short messages on some mobile phones have the function of reply path. If on is selected, the receiver will use the number of the SMS center you just sent when using the "reply" function (the number of SMS centers varies in different cities). This can improve the recovery speed. However, this function needs network support, so it may happen that when you send a message to the other party from other provinces, the direct reply cannot be transmitted, which is a problem of network compatibility. This is the need to turn off the SMS reply function or send it by sending a new SMS.