| Written in | PHP | 
|---|---|
| Working state | In development | 
| Source model | Open source | 
| Latest release | 5.0 | 
| Available in | English, Spanish | 
| Update method | YUM, ISO | 
| Platforms | IA-32, x86-64 | 
| License | GPL | 
| Official website |  www | 
Issabel is open-source unified communications PBX software, providing user-friendly web-based configuration, management, and reporting for telephony. Modules providing predictive dialing can be added. It is a fork of the open-source versions of Elastix, developed by the user/developer community when 3CX acquired Elastix, closed the community, halted distribution and development of the open-source versions, and released a proprietary version. [1] [2] [3] [4]
Issabel is based upon open-source versions of Elastix, Asterisk, FreePBX, HylaFAX, Openfire and Postfix and provides PBX, fax, instant messaging and e-mail server functionality.
Issabel is open-source software licensed under the GNU General Public License.