MSPL scripting reference

Learn about the Microsoft SIP Processing Language (MSPL) scripting language that is used in Microsoft Lync Server 2013 SDK SIP applications.

Applies to: Lync 2013 | Lync Server 2013

MSPL overview

The Microsoft SIP Processing Language (MSPL) scripting language is used to filter and route SIP messages. Known as "message filters," MSPL scripts are embedded in the application manifests of Microsoft Lync Server 2013 applications.

MSPL does not support arithmetic, type declarations, or loops outside 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 an Lync Server 2013 application manifest.

See also

Other resources

Lync Server 2013 SDK general reference

Lync Server 2013 API reference