What free SMS mobile phone software are there now?

Sending a text message to a mobile phone requires two steps:

Count all the mobile phone numbers of 1 1 digits into a table. One line, wps and excel will do.

2. See these two boxes? The first number box is to import the mobile phone number you prepared. The second content box writes the short message content. Arrive 3 seconds after sending, all arrive. The other party's cell phone will ring. That's a text message ringtone.