Debugging VOIP with Shikha Sharma #CiscoKid

Its good to write again. Had to take a break in between but it got longer than I thought. Anyways, getting back to our query of the day, I think it would be helpful for many engineers while dealing with this piece of information. I faffed on google too but there was no information on how to check hardware model from windows call manager as nobody was at site While clutching at the straws, I was browsing regedit and it came across. Here is the path- HKEY_LOCAL_MACHINE > Software > Cisco Systems > Model- Hardware. I hope it will help you too.

Primarily, such issues are the cause of configuration negligence. Below is what we need to make sure to make it work- 1. Make sure that phone and gateways have right MRGL. 2. MRGL should contain required MOH server resources. 3. Make sure that MOH servers are registered with respective CUCM nodes. 4. MOH files need to be uploaded on all IPVMSA servers. 5. The format of the MOH file should be .raw, for linux platforms. If you started facing this issue all of a sudden, then IPVMSA might got stuck and you need to restart IPVMSA service on all nodes. Please make sure to take IPVMSA and CUCM traces on the detailed level in order to find out RCA of the issue.

Understanding sample code yellow alert- Oct 3 01:00:10, cms01, Error, Cisco CallManager, ccm: 147896: Oct 03 05:00:10.616 UTC : %CCM_CALLMANAGER-CALLMANAGER-3-CodeYellowEntry: CodeYellowEntry Expected Average Delay:362 Entry Latency:20 Exit Latency:8 Sample Size:10 Total Code Yellow Entry:14 High Priority Queue Depth:2 Normal Priority Queue Depth:12 Low Priority Queue Depth:70 Cluster ID:StandAloneCluster Node ID:cms01, 3652 The above alert is about code yellow entry, it shows the time when server enters code yellow state. There are no specifications to note at this alert, CM enters code yellow when it achieves the mentioned conditions for code yellow state as mentioned in service parameters. Oct 3 01:00:12, cms01, Error, Cisco CallManager, ccm: 147897: Oct 03 05:00:12.268 UTC : %CCM_CALLMANAGER-CALLMANAGER-3-CodeYellowExit: CodeYellowExit Expected Average Delay:0 Entry Latency:20 Exit Latency:8 Sample Size:10 Time Spent in Code Yellow:2 Number of Calls Rejected Due to C...

Here is the link to download webex connect- http://download.webexconnect.com/connect/webexconnect.exe

Here is the link from where you can download webex recording player- http://www.webex.com/play-webex-recording.html Hope it helps!

In CDR, it is the most common issue in CDR. We get errors like below- "30023: Data is not available for the date range selected. Data is available only from Dec, 2009 to Jan 2, 2010" "10021 no matching record" Customer panics here and opens TAC case to resolve it. Here I will give you some tips and tricks on how to resolve it quick. First, check if there are any files in the processed folder. Obviously, there won't be any and you would see the following error- "no file was found to show" However, you have checked that files are present in CDR repository, in preserve and car folder. In such a scenario, first get the output of- run sql select * from car:tbl_system_preferences CDR_MAX_DATE              09/16/2010   -> this part is most important as it shows that CAR has data till Sep16                    ...

I hope by the end of this read, it provides you a good knowhow on CDR. What is CDR? CDR is call detail record generated after every call- incoming / outgoing / missed. CDR provides the data about original calling number, original called number, date and time when the call started, time when the call was connected , date and time when the call ended and redirected number. What is CMR? CMR is call management records also generated after every call. CMR provides the information about the jitter, lost packets, the amount of data sent and received during the call, and latency. How to enable CDR and CMR on CUCM server? In order to turn on the CDR, set ' enable CDR flag ' and ' CDR Log Calls with Zero Duration ' to true in the service parameter on the all call processing nodes. In order to turn on the CMR, enable ' call diagnostics ' in the service parameter on the call processing nodes. What are flat files? Flat files are the files which contain call inf...