- Multiple database engine supported (using PHP PEAR DB)
- Send SMS to single mobile phone (web2mobile)
- Send SMS broadcasted to a group of mobile phones (web2mobiles, Bulk SMS)
- Support sending flash and unicode message
- Receive private SMS to Inbox (mobile2web)
- Forward single SMS from mobile to a group of mobile phones (mobile2mobiles)
- SMS autoreply, for easy autoreplying formatted incoming SMS
- SMS board, forward received SMS to email, html and/or xml page
- SMS command, execute server side shell script using SMS
- SMS custom, forward incoming SMS to custom SMS application
- SMS poll, manage polling system using SMS
- SMS quiz, served quizzes on SMS
- SMS subscribe, manage user subscribes to a service using SMS
- SMS autosend, automatically send SMS once or repeated
- Create your own features, themes and gateway modules as a plugin
- Support Gnokii, Kannel, SMS Server Tools or Clickatell
- Simple webservices for sending SMS and retrieving delivery reports (input.php)
- Long SMS support, length of text configurable on config file
- Web-based interface

Minimum Required Hardware
- Web server capable hardware

Minimum Required Software
- Operating System Linux
- Web Server (Apache, Apache2)
- Database Server MySQL 4.x.x or latest stable release
- PHP 4.4.x or latest stable release with mysql module enabled and CGI/CLI version
- PHP PEAR DB (this is a must, most admins forgot this requirement)
- Access to SMTP server (playSMS will use this to send email)
- lynx, a console web browser

Minimum Required Server Administrator (or Developer)
- Understand howto make sure installed PHP has MySQL module enabled/loaded
- Understand howto create/drop MySQL database
- Understand howto insert SQL statements into created database
- Basic knowledges to operate and manage Linux

Working Gateway Module:
- Clickatell (www.clickatell.com)
- Gnokii (www.gnokii.org)
- Kannel (www.kannel.org)
- SMS Server Tools (smstools.meinemullemaus.de)
- SMS Server Tools 3 (smstools3.kekekasvi.com)
- Uplink