Cisco Cisco Computer Telephony Integration Option 9.0 Reference Guide

4-2

CTI Server Message Reference Guide (Protocol Version 14) for Cisco Unified ICM/Contact Center Enterprise & Hosted

Release 8.0(1)

Chapter 4 Session Management

Session Initialization

Once a TCP connection has been established, you can attempt to initialize a communications session by
sending an OPEN_REQ message to the CTI Server. The CTI Server responds with an OPEN_CONF
message to confirm the successful establishment of a session.

Figure 4-1

depicts the message flow.

Figure 4-1

Session Initialization Message Flow

CTI Service Masks

Table 4-1

shows the CTIService masks.

CTI Client

CTI Server

OPEN_REQ

OPEN_CONF

Table 4-1

CTI Service Masks

MaskName

Description

Value

CTI_SERVICE_
DEBUG

Causes all messages exchanged
during the current session to be
captured to a file for later analysis.

0x80000000

CTI_SERVICE_
CLIENT_ EVENTS

Client receives call and agent state
change events associated with a
specific ACD phone.

0x00000001

CTI_SERVICE_CALL_
DATA_UPDATE

Client may modify call context data.

0x00000002

CTI_SERVICE_
CLIENT_CONTROL

Client may control calls and agent
states associated with a specific ACD
phone.

0x00000004

CTI_SERVICE_
CONNECTION_
MONITOR

Establishment and termination of this
session cause corresponding Unified
ICM Alarm events to be generated.

0x00000008

CTI_SERVICE_ALL_
EVENTS

Client receives all call and agent state
change events (associated with any
ACD phone).

0x00000010

CTI_SERVICE_
PERIPHERAL_
MONITOR

Client may dynamically add and
remove devices and/or calls that it
wishes to receive call and agent state
events for.

0x00000020