Small asterisk distribution with GUI

ckleea

Have a look at this one

http://www.askozia.com/

Features

Askozia®PBX aims to make the power of Asterisk® available to the average user in a slimmed-down embedded PC friendly form. It does this by greatly simplifying the installation, administration and maintenance of a SOHO PBX system as well as providing the user with easy-to-configure and use telephony services and applications.
An Embedded System

    * less than a 20MB download, less than 30MB installed
    * only 200Mhz and 64MB RAM needed to run
    * low resource requirements means low energy requirements
    * scales up to match the hardware it is running on

Telephony Services

    * conference rooms with optional access pins
    * voicemail to e-mail
    * call groups
    * multilingual audio prompts

Automated Configuration

    * automatic network configuration with DHCP client support
    * automatic detection and configuration of telephony ports
    * auto-provisioning of SIP telephones
    * automatic configuration of remote gateways

Connectivity

    * support for SIP, IAX, Skinny, Analog and ISDN accounts
    * calls freely routable between different technologies
    * integrate external phones (mobile telephones) into your local dialplan
    * outgoing provider fail-over routing

Installation, Administration and Configuration Management

    * distributed as a firmware image, individual software component compatibility thoroughly tested
    * entire system configuration is stored in a single XML file simplifying backups, restores and provisioning
    * administration is carried out through our multilingual WebGUI, going beyond the configuration of Asterisk, it also configures the system's network, dyndns, ntp, and smtp settings
    * manual file appends and overrides supported