Hi,
How to communicate from server to Arduino using only arduino gsm shield or else let we know any other way.

Example for possible to communicate from server to Arduino :
- Using MAC address possible
- Communicate via SMS
- Etc …

Hi,
How to communicate from server to Arduino using only arduino gsm shield or else let we know any other way.

Example for possible to communicate from server to Arduino :

How to communicate from server to Arduino using only arduino gsm shield or else let we know any other way.
Your picture seems to indicate that a server should push data to the Arduinos. That is NOT the role of a server. A server responds to GET requests.
An Arduino with a GSM shield can make GET requests. Exactly how depends on the specific GSM shield you have.