/mcpAgent Invokes Talkback Events Action For 5000 receive LINE_CALLSTATE device = x10218 param1 = x100, CONNECTED param2 = x1, ACTIVE param3 = x0, Receive StartReception event For 5001 receive LINE_CALLSTATE device = x101f6 cbInst = x0 param1 = x100, CONNECTED param2 = x1, ACTIVE param3 = x0, Receive StartTransmission event Continuing from the previous use case, 5001 initiates LineTalkBack from application on the InterCom call Change the SpeedDial Events Action The new speed dial and label is successfully set for the intercom line Receive LineSpeeddialChangeEvent from CTI Send LINE_DEVSPECIFIC to indicate that speeddial and label changed Open line 5000 LineChangeSpeeddial request (speeddial to 5003, label = “Assistant_5003”) TAPI returns configured speeddial/label that is configured on the line. Application issues LIneGetDevCaps to retrieve speeddial/label that is set on the line IPv6 Use Cases The use cases related to IPv6 are provided below: Cisco Unified TAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 863 Message Sequence Charts Agent Invokes Talkback