Line sub-session

The line sub-session provides access to functionality associated with a specific line. The API provides functions that allow clients to:

• open and close line sub-sessions

• obtain information about the line capabilities

• obtain information about the current line status

• obtain information about the status of the hook

• obtain notification of events associated with the line, e.g. incoming calls

• list the number of calls that are supported by the line

• obtain information about the line’s calls

• obtain notification of an incoming call, change in hook status, change in line status, or a new call being added to the line