Gammu as a free software is project run by volunteers in their free time. To appreciate their work you can donate them in one of ways mentioned below.
Thank you for interesting in donating money to Gammu and Wammu projects. These money can serve as a motivation for developers as well as fund for buying some hardware which is required for testing. We already have some cell phones, but there is simply lot of them and having more available allows us to create better software.
The donation itself is being processed by PayPal where you can pay either by their
account or by using any major credit card. You can also directly send a
List of companies or individuals who regularly support this website or Gammu development financially.