SMS gateway andriod

http://stackoverflow.com/questions/4043490/how-do-i-send-an-sms-from-a-shell

https://www.codeproject.com/Articles/857539/SMS-Gateway-using-Android-Phone

http://www.swensensoftware.com/im-only-resting  A windows Tool but not good as Advanced REST Client or Postman 

Part 2
This reference LINK

Curl exe download here 
Pre Install .Net 4 you need

1. Download curl zip
2. Extract the contents (if you have downloaded the correct version you should find curl.exe)
3. Place curl.exe in a folder where you keep your software (e.g. D:\software\curl\curl.exe)
4. To run curl from the command line
   a) Right-hand-click on "My Computer" icon
   b) Select Properties
   c) Click 'Advanced system settings' link
   d) Go to tab [Advanced] - 'Environment Variables' button
   e) Under System variable select 'Path' and Edit button
   f) Add a semicolon followed by the path to where you placed your curl.exe (e.g. ;D:\software\curl)

Now you can run from the command line by typing:

C:\Users\user>curl -d to=12345678 -d message=MessageContent http://192.168.1.7:1688/services/api/messaging/                               

Finish "Andriod SMS Gateway"