Authorization Code

The individual authorization code is set by command and can be 2 to 64 digits or characters long. For SIP extensions the code can be 2 to 64 characters long, that is, not just digits but also ASCII letters and special characters, if the phone supports that.

A common authorization code (2 to 64 digits) can be dialed from any extension, unless the extension's categories prevent it. An individual authorization code is always associated with a specific extension but can be dialed from any extension (by providing the concerned directory number).

A Call Information Logging (CIL) code is associated with every authorization code. The CIL code can be between 1 to 20 digits (but for some output formats only 6 or 15 digits), and is used to identify the calling party in call logging.