This document discusses the
kCtiIncompatibleProtocolVersion - Incompatible protocol
version error message that is displayed in the event log after
an upgrade of the Cisco Unified Communications Manager.
This error message indicates that some applications that have a
Telephony Application Programming Interface and Java Telephony Application
Programming Interface (TAPI/JTAPI) in use still run an outdated version which
is not compatible with the version included in the new version of
Readers of this document should have a general knowledge of Cisco
Unified Communications Manager.
The information in this document is based on Cisco Unified
Communications Manager 4.1.
The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.
Technical Tips Conventions for more information on document
After an upgrade of the Cisco Unified Communications Manager, this
error message is displayed in the event log.
Event Type: Error
Event Source: Cisco CTIManager
Event Category: None
Event ID: 3
Time: 11:24:54 AM
Error: kCtiIncompatibleProtocolVersion - Incompatible protocol version.
Message Version: 0
Minimum Version: 60000
Current Version: 60000
App ID: Cisco CTIManager
Cluster ID: CBHA-PUB1-Cluster
Node ID: 10.27.1.6
Process ID: 852
Process Name: CtiHandler
Explanation: The JTAPI/TAPI application version is not compatible
with this version of CTIManager, so received message has
Recommended Action: Verify correct version of application
are being used; otherwise,contact TAC..
This problem arises when the Cisco Unified Communications Manager is
upgraded, but not the TAPI/JTAPI clients.
You must upgrade the TAPI/JTAPI client software on any application
server or client workstation on which TAPI/JTAPI applications are installed. If
you do not upgrade the TAPI/JTAPI client, your application fails to
In the event log error message, the TAPI or
JTAPI client installed on the device with the IP address of 172.28.2.179 has
not been upgraded to a compatible version.
You need to investigate the device to find what application at this
address uses TAPI/JTAPI and update the corresponding package from the
CallManager Administration > Applications
> Install Plugins as this section shows. In this example,
the device is the one with the IP address of 172.28.2.179.
Note: Some of the applications that use JTAPI/TAPI interfaces are Personal
Assistant, Attendant Console, IPCC Express, TAPS, and Extension
If you need to upgrade the JTAPI version, select Cisco
JTAPI, as this example shows:
If you need to upgrade the Telephony Service Provider, select
Cisco Telephony Service Provider, as this example