The Asterisk Manager Interface can be accessed in two ways. The first is through TCP port 5038 using the AMI protocol and the second is through the HTTP protocol on port 8088. Both of these ports can be change in the manager.conf or http.conf config files.

Once Asterisk is configured properly for AMI access, you can issue standard AMI commands through a HTTP query string interface and have results returned as text, html, or xml.

To configure AMI over HTTP, the following line needs to be added or modified in the manager.conf file:

webenabled = yes

The following lines need to be added or modified in the http.conf file:

enabled = yes
bindaddr = 0.0.0.0 ;to allow connections from any IP address.
bindport = 8088
prefix = asterisk ;the virtual directory to be used for the interface, ie. http://asteriskserver:8088/asterisk/

Reload the config files with the reload command at the CLI and the webserver should be running. In asterisk 1.6 you can run the command http show status to see the status of the server. It will also show you the paths to use to return the desired results.

HTTP Server Status:
Prefix: /asterisk
Server Enabled and Bound to 0.0.0.0:8088
Enabled URI’s:
/asterisk/httpstatus => Asterisk HTTP General Status
/asterisk/phoneprov/… => Asterisk HTTP Phone Provisioning Tool
/asterisk/manager => HTML Manager Event Interface
/asterisk/rawman => Raw HTTP Manager Event Interface
/asterisk/static/… => Asterisk HTTP Static Delivery
/asterisk/mxml => XML Manager Event Interface

You can view the HTML interface to AMI at the following path http://asteriskserver:8088/asterisk/manager. Keep in mind that asteriskserver is the hostname or IP of your particular server. Each command issued should have an action argument. So, it would look like http://asteriskserver:8088/asterisk/manager?action=actionname. If the action has any arguments, pass them along with argumentname=argumentvalue.

For every method of issuing AMI commands, the authenticated session information is stored in a cookie in the browser or in whatever client you use to access AMI. The cookie is called mansession_id and, after login, should be passed back to the server for every subsequent command.

To login to the HTML interface, go to http://asteriskserver:8088/asterisk/manager?action=login&user=admin&secret=amp111 and make sure you are able to accept the mansession_id cookie.

The above login action uses the default manager username and password from a trixbox installation. In other asterisk installations, you can add or modify users in the manager.conf config file.

The complete list of AMI commands can be found here: http://www.voip-info.org/wiki/view/Asterisk+manager+API