Problem with IP Communcator 2.1.1 in Microsoft Vista

Unanswered Question
Jul 27th, 2007
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Hi hi,

Anyone has encountered this error in the CCM's event viewer? The phone is showing nothing on the screen and the buttons are not enabled. But in the CCM it shows the phone is registered. The phones are pingable from the CCM. Anyone has encountered this before?

Event Type: Error

Event Source: Cisco CallManager

Event Category: None

Event ID: 3

Date: 7/27/2007

Time: 4:09:51 PM

User: N/A

Computer: CM2


Error: StationEventAlert - Station alert.

TCP ProcessID:

Device Text: 32: Name=SEP001641E66534 Load= : Invalid SCCP message! : Invalid length

Param1: 0

Param2: 0

App ID: Cisco CallManager

Cluster ID: StandAloneCluster

Node ID:

Explanation: Station device sent an alert to Cisco CallManager.

Recommended Action: Ensure that the configuration for identified device is proper..

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Overall Rating: 5 (1 ratings)
s.jankowski Thu, 08/02/2007 - 05:50
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There are some possible reasons that this problem occurs:

There can be replication issues between Cisco CallManager databases. In order to check this, run the DBLHelper app to check good replication. This is ideally located in c:\program files\cisco\bin\.

If the phones unregister across an Internet connection, this behavior can be expected once in a while. IP telephony design recommends end-to-end QoS configuration, which is something that is out of your control if you use the Internet.

The Spanning Tree Protocol (STP) is not configured on the switch so there are loops.

Cisco CallManager misses keepalives, therefore phones unregister.

The phone loads.

In order to resolve this issue, try to increase the keepalive timer on the Cisco CallManager in order to rule out a keepalive timeout issue. Go to the ccmadmin web page and under Service > Service Parameters, choose the server(s) that the IP phones are registered with. In Service*, choose Cisco CallManager. Change the value of Station Keep Alive Interval (sec)* to 45.

eugene612 Thu, 08/02/2007 - 21:22
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Thanks man for your inputs.

Will check this out!

Appreciate it!

eug-c Wed, 05/21/2008 - 22:17
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That was really some time ago, but I think we just RMA the phone and the new one worked fine.




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