Why can't my HTC DHD G 10 mobile phone receive short messages and answer calls when surfing the Internet (the other party calls and says it can't be connected)? Find a way ~

This is because the mobile phone will occupy the signal legend channel, and it is also necessary to call and send text messages. Just like a door is blocked by one person, others can't get in naturally, so you can't receive phone calls and text messages, and some programs will automatically update online when using hTC, so if you don't need to use the Internet at ordinary times, just turn off the mobile network (gprs), so that you can receive text messages and phone calls normally (if