Cisco Cisco Computer Telephony Integration Option 8.5 Developer's Guide
4-2
CTI Server Message Reference Guide (Protocol Version 9) Release 7.0(0)
Chapter 4 Session Management
Session Initialization
Figure 4-1
Session Initialization Message Flow
CTI Client
CTI Server
OPEN_REQ
OPEN_CONF
OPEN_REQ Message
defines the OPEN_REQ message.
Table 4-1
OPEN_REQ Message Format
Fixed Part
Field Name
Value
Data Type
Byte
Size
Size
MessageHeader
Standard message header.
MessageType = 3.
MessageType = 3.
MHDR
8
InvokeID
An ID for this request message, to
be returned in the corresponding
confirm message.
be returned in the corresponding
confirm message.
UINT
4
VersionNumber
The version number of the interface
requested by the CTI client. This
defines the version of all messages
in the message set. For this release,
set this value to 9.
requested by the CTI client. This
defines the version of all messages
in the message set. For this release,
set this value to 9.
UINT
4
IdleTimeout
The session idle timer, expressed in
seconds. If the session is idle (no
messages received) for this length of
time, the CTI Server should reset the
TCP connection and await the
establishment of a new session. This
value is typically 4 times the
heartbeat interval used by the CTI
client. If the CTI client does not use
the HEARTBEAT_REQ message,
set this field to 0xFFFFFFFF.
seconds. If the session is idle (no
messages received) for this length of
time, the CTI Server should reset the
TCP connection and await the
establishment of a new session. This
value is typically 4 times the
heartbeat interval used by the CTI
client. If the CTI client does not use
the HEARTBEAT_REQ message,
set this field to 0xFFFFFFFF.
UINT
4