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Microsoft SIP Processing Language

Office 2003
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

MSPL Script SyntaxDescribes the basic syntax of MSPL.
MSPL Built-in ConstantsDescribes the built-in constants of MSPL.
MSPL Built-in VariablesDescribes the built-in variables of MSPL, including the predefined request and response variables.
MSPL Types and Type ConversionDescribes the basic datatypes supported by MSPL and the results of implicit conversion between them.
MSPL Built-in ClassesDescribes the predefined types for MSPL.
MSPL Built-in FunctionsProvides a comprehensive reference for all built-in MSPL functions.
Writing a Message Filter ScriptProvides a guide to writing a simple message filter for use in a Live Communications Server application manifest.
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