3.1 Functions
This chapter contains a list of the available functions in the Telephony SPI. The list is in alphabetical order. The information for each function includes the following:
- The correct syntax for the function
- A statement of the function's purpose
- A description of input parameters
- A description of the return value
- A list of the valid call states on entry of the function and typical call state transitions when the request completes
- Comments on using the function and related functions
- References to other functions, messages, or data structures.
- An optional description of which fields of large data structures must be filled in by the Service Provider and which fields must have their values preserved intact.
- An optional comparison with a corresponding function at the TAPI level.