You can install smsgw-client-php via composer or by downloading the source.
smsgw-client-php is available on Packagist as the
intelecom/smsgw package.
Click here to download the source (.zip) which includes all dependencies.
Once you download the library, move the smsgw-client-php folder to your project directory and then include the library file:
require '/path/to/ssmgw-client-php/Intelecom/Intelecom_SMSGW.php';
and you're good to go!
If you need help installing or using the library, please contact Intelecom Support at support.interactive@intele.com first.
If you have found a bug in the library or would like new features added, please go ahead and open issues or pull requests against this repo.