Supported Salesforce Editions
You can install the SMS-Magic Converse package on the following Standard Salesforce editions:
- Enterprise Edition
- Unlimited Edition
- Force.com Edition
- Developer Edition
- Performance Edition
- Professional Edition
In case you want custom Apex Code, then you must have the Enterprise, Unlimited Edition, and Force.com.
For the Professional edition, you need to buy streaming APIs. Without streaming API, SMS-Magic will not work on the professional edition.