You can save contacts from PC to your phone using InTouchApp Extension.
Before you proceed, you need InTouchApp installed on your phone & InTouchApp Extension installed on Chrome or Firefox. Learn more.
How to save contacts from PC to phone :
Step 1 - Click on InTouchApp Extension located on the top right corner of the address (URL) bar.
Step 2 - It would open up a screen where you can fill in the details. Once done, click on SAVE CONTACT button. The contact would be automatically saved to your phone.