End-User URL Control API

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This optional ipbx module is installed under Advanced Setup → Modules. Registered modules are displayed with registered module.

The URL control module allows you to control certain user settings via a simple URL. It also allows you to initiate a call (call origination) to your extension and bridge the call to any destination reachable within your default user settings (or custom extensions). Three types of authentication are available depending on your application:

  1. Key based authentication (user associated)
  2. IP address based authentication (user associated)
  3. Generic HTTP authentication (click to call only)


Warning.gif Do not expose this functionality on the public internet! If your server is reachable via a public IP address, make sure you take the appropriate precautions to prevent abuse.


Contents

Enabling URL Control

This assumes that you have the URL Control module installed. See Optional Modules

Log into the end user panel e.g. http://mypbx/user and enable URL Control under the Features section. Once enabled the system will automatically generate a 6 character key that identifies the user/extension. You can also, optionally specify an IP address that will identify the user/extension instead of the key.

Action Commands

Examples on how to use URL control:

Call Forwarding

Call Forwarding allows you to enable and disable call forwarding for the authenticated extension. Note that is is only applicable if there is a forwarding destination configured. All forwarding settings as configured in the End User Panel are applicable.

Follow Me Toggle

Follow Me Toggle allows you to enable and disable follow me for the authenticated extension. Note that is is only applicable if there is at least one follow me destination configured. All follow me settings as configured in the End User Panel are applicable.

Voicemail Toggle

Voicemail Toggle allows you to enable and disable the voicemail box for the authenticated extension. All voicemail settings as configured in the End User Panel are applicable.

Call Number (Click to Call)

If you specify an authorized client IP address you can omit the key argument. E.g. http://mypbx/user/c/?call=5550000

Caller ID Control

available as of ipbx 2.0.5-g and higher

Optionally specify an arbitrary caller ID for the second call leg using the cid parameter. You can either specify a number or a number and name: 

 Number: 12345
 Name and Number: John Doe <12345>

If you want the call to appear as unknown to the called party, simply set the cid variable to unknown. Note that the first call leg caller ID will be the number to be dialed.

Please consider correct URL encoding of above examples: 

 http://mypbx/user/c/?keyOB94AU&call=5550000&cid=John+Doe+%3C12345%3E

Further click to call settings can be configured under Advanced Setup.

Return Values

Return values are simple text strings that reply with the result of the requested action. They can either start with the ERROR or OK keyword, followed by a short explanation.

Error Values 

 ERROR: AUTHENTICATION FAILED

Returned if authentication fails (invalid key) or IP address cannot be matched. 

 ERROR: FAILED PLACING CALL

Returned if the call could not be placed successfully. See also notes below on placed calls. The default timeout for first leg calls is 30 seconds.

Successful Values 

 OK: UPDATED FORWARDING SETTINGS

The forwarding settings have been updated successfully. 

 OK: UPDATED FOLLOWME SETTINGS

The followme settings have been updated successfully. 

 OK: UPDATED VM SETTINGS

The voicemail settings have been updated successfully. 

 OK: CALL PLACED

The call has been placed successfully. Returned once the first leg of the call, to the user, has been placed successfully. Note this value will also be returned if the second leg of the call fails. The second leg call progress will be indicated on the phone of the caller.

HTML Output

URL Control can also return a simple HTML call progress page by setting the progress argument to 1 (text) or 2 (graphic). E.g. http://mypbx/user/c/?call=5550000&progress=1 - HTML output will pause until the successful/failed status is returned.

Successful Call 

 » User 4002
 » Placing call to 4012...
 » Call completed!
 » Wait for party to pickup

Failed Call 

 » User 4002
 » Placing call to 4012...
 » Call failed!

Generic HTTP Authentication

While URL Control can be used in a user context, one can also use plain HTTP authentication to place arbitrary calls from any extension to another. This applies only to the call functionality and cannot be used for any other commands, since there is no specific user associated to the login/authentication. There is no need to use the key argument or come from a specific IP address. See Call Number (Click to Call) for details on IP address based authentication.

Do not under any circumstances use these URLs directly in your publicly exposed web pages. A simple HTML analysis could allow a hacker to bridge two arbitrary phone lines.

The following system configuration variables are applicable: 

 $cfg['IPPSEnabled'] // set this variable to TRUE to use HTTP authentication
 $cfg['IPPSUser'] // the variable that sets the username
 $cfg['IPPSPassword'] // the variable that sets the password
 $cfg['IPPSDPContext'] // optional dialplan context where the extension should be looked up (if not set inside will be used)

Example using URL Control with HTTP authentication: 

 http://user:password@mypbx/user/c/?user=12345&call=5550000

When using Generic HTTP Authentication the context variable can be passed for a custom dialplan context. This will default to inside or to the value set for $cfg['IPPSDPContext']. If required the user parameter can also be specified as channel such as user=SIP/4002 instead of an extension.

Retrieved from "https://wiki.taridium.com/End-User_URL_Control_API"
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