post_call is a small tool which is able to send a HTTP request to your AVM FritzBox 7050, which will then call a number you provide to post_call as a command-line parameter and using a interface (phone port number) you also provide as a command-line parameter. After FritzBox has called the number, your phone will ring when the person called is on the line. This can be useful if you want to integrate automatic calling from your electronic phonebook.
pyWebSMS is a program which lets you send SMS through the Internet without opening a Web browser. You can send multiple SMS, save your contacts, view the history, and much more. It's completely modular, so you can add or remove providers for sending SMS. You can make your own module for your provider if one doesn't exists yet by programming it in Python.
python-gammu is a set of Python bindings for Gammu, the GSM mobile manager for various cellular phones. It can work with any phone that Gammu supports, including many models by Nokia, Siemens, and Alcatel. python-gammu is now part of the Gammu project and it does not have separate releases anymore.