Microsoft SIP Processing Language

Microsoft Office Live Communications Server 2005 with SP1

Microsoft SIP Processing Language

The Microsoft SIP Processing Language (MSPL) is a scripting language used specifically for filtering and routing SIP messages. Known as "message filters", such scripts are embedded in the application manifests of Live Communications Server applications.

MSPL does not support arithmetic, type declarations, or loops outside of the foreach statement.

MSPL Topics

Topic	Description
MSPL Script Syntax	Describes the basic syntax of MSPL.
MSPL Built-in Constants	Describes the built-in constants of MSPL.
MSPL Built-in Variables	Describes the built-in variables of MSPL, including the predefined request and response variables.
MSPL Types and Type Conversion	Describes the basic datatypes supported by MSPL and the results of implicit conversion between them.
MSPL Built-in Classes	Describes the predefined types for MSPL.
MSPL Built-in Functions	Provides a comprehensive reference for all built-in MSPL functions.
Writing a Message Filter Script	Provides a guide to writing a simple message filter for use in a Live Communications Server application manifest.

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