This document provides installation instructions for ICM 10.5(3) ES27. It also contains a list of ICM issues resolved by this engineering special. Please review all sections in this document pertaining to installation before installing the product. Failure to install this engineering special as described may result in inconsistent ICM behaviour.
This document contains these sections:
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This engineering special addresses
an issue with the VRU PIM component, running as part of a VRU PG connected to Unified
CVP, that is in turn, meant to cater to network blind transfer (NBT) requests, to
transfer calls to remote sites or destinations. Refer to the Resolved Caveats
section, for more details.
ICM 10.5(3)
ES27 is compatible with and should be installed on these ICM components:
Do not
install this engineering special on any other component, other than the VRU PG
You should consider installing or uninstalling
this patch only during a maintenance window, since it involves stopping the VRU
PG service. This engineering special contains
changes to the following files – vrupim.exe and vrupim.pdb
·
Stop
the VRU PG service using the Unified CCE Service Control
·
Launch
the installer provided for ES27 and follow the on screen instructions.
·
Start
the VRU PG service using the Unified CCE Service Control
Please note: Apply this engineering special on both sides of
the duplexed VRU PG pair.
To uninstall this patch, go to Control Panel. Select "Add or Remove Programs". Find the installed patch in the list and select "Remove".
Note: Patches have to be removed in the reverse order in which they were installed. For example, if you had installed patches 3, then 5, then 10 for a product, you will need to uninstall patches 10, 5 and 3 in that order to remove all patches for that product.
·
Stop
the VRU PG service using the Unified CCE Service Control
·
Launch
Control Panel -> Programs -> Programs and Features, and after selecting
ES27, click uninstall, and follow the on screen instructions
·
Start
the VRU PG service using the Unified CCE Service Control
This section provides a list of significant ICM defects resolved by this engineering special. It contains these subsections:
Note: You can view more information on and track individual ICM defects using the Cisco Bug Toolkit located at: http://www.cisco.com/support/bugtools/Bug_root.html
This section lists caveats specifically resolved by ICM 10.5(3) ES27.
Caveats in this section are ordered by ICM component, severity, and then
identifier.
Be sure to include ALL of the resolved caveats for the files you're delivering,
i.e. all of the caveats from the release notes of the previous ES which
included these files.
|
Identifier |
Severity |
Component |
Headline |
|
CSCvf90385 |
2 |
pg.vru |
ICM
VRU PIM Encounter Unexpected Crash with ProcessDialogFail |
Caveats are ordered by severity then defect number.
Be sure to include ALL of the resolved caveats for the files you're delivering,
i.e. all of the caveats from the release notes of the previous ES which
included these files.
Defect Number: CSCvf90385
Component: pg.vru
Severity: 2
Headline: ICM VRU PIM Encounter Unexpected Crash with ProcessDialogFail
Symptom: VRU
PIM asserts while processing Dialog Fail message from Router.
The
VRU PIM logs would indicate a call stack similar to below:-
Call
stack: Address Frame
000B2CC5
00448C70 Dialogue::FromRouter_DialogFail+15
000C21B1
00448CF8 VRUPeripheral::ProcessDialogFail+C1
001164C6
00448DE0 Peripheral::ProcessINRCMessage+226
00116BF2
00448DEC Peripheral::StartupStandAlone+102
00110907
00448E04 PimIO::ProcessOPCMessage+157
000E67CE
00448E70 MDSStopMetering+3AE
000E9797
00448E80 MDSStartClient+257
00110BE9
00458EB8 PimIO::PIMInputManager+1E9
001170D4
00458F00 Peripheral::StartInput+84
000C9FC5
0046F498 PimMain::Execute+275
000D2E9B
0046F4B0 Reader::SingleCommand+DB
Conditions: When a network blind transfer is initiated with CVP as the
pre-routing client and the VRU PIM connected to CVP, receives notification of
the customer hanging up, at the same time as a CONNECT message from Router was
being processed.
Workaround: None
Further Problem Description:
This
is akin to Agent transferring the call from customer to CVP and customer
disconnects the call at the exact same time. In this particular case, the
CONNECT from Router and DISCONNECT event from CVP, arrive at the same millisecond
at the VRU PIM, and PIM ends up processing the DISCONNECT event from CVP first
and then the CONNECT message from Router later, causing a stale entry in the
internal data structure to a deleted dialogue. The VRU PIM eventually asserts,
when it processes a Dialog Fail message from Router, matching the dialogue that
was deleted. Despite the events being received at around the same millisecond,
it the CONNECT message was processed first, and then the Disconnect event
report, the dialogue clean up would have been proper. The issue is seen only if
the Disconnect event report is processed ahead of the Connect message.
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