Troubleshooting Missing IMEI in Cisco SGW CDR For Airtel

Overview

The issue revolves around the absence of the International Mobile Equipment Identity (IMEI) in the Cisco Serving Gateway (SGW) Call Detail Record (CDR) at a specific site. The IMEI is a unique identifier for mobile devices and is crucial for various network services. The problem was not with the data itself, as the IMEI was present when the file was processed at a different site. The issue was traced back to the plugin configuration at the site where the problem was reported.

Recording: Explaining the issue

Ticket: 4148237

Solution

To resolve the issue of the IMEI not being present in the Cisco SGW CDR, follow these steps:

1. Processed the Manesar SGW4 files in Uppal Site and found files are successful and also reflecting the IMEI in the output field
2. Use an online decoding tool like "https://lapo.it/asn1js/" to confirm that the IMEI value is correctly showing in the data file.
3. Upload the .DAT file and click on decode. It will show you that TAG 29 is present and showing IMEI value is properly showing.
4. 
5. Upload the plugin from the Uppal Site to the Manaesar site by doing a backup of the existing plugin.
   • Connect to Manesar site and perform the below steps:
     • cd $CRESTEL_P_ENGINE/module/mediation/bin
     • sh cli.sh 7734 ---> Shutdown---> All
   • copy the plugin from the Uppal site from path $CRESTEL_P_ENGINE/module/mediation/config/7734/distributionservice/002/plugin/asn1-composer.xml
     • cp $CRESTEL_P_ENGINE/module/mediation/config/7734/distributionservice/002/plugin/asn1-composer.xml
     • $CRESTEL_P_ENGINE/module/mediation/config/7734/distributionservice/002/plugin/asn1-composer.xml-02012024
     • scp <UppalIP>@$CRESTEL_P_ENGINE/module/mediation/config/7734/distributionservice/002/plugin/asn1-composer.xml
     • $CRESTEL_P_ENGINE/module/mediation/config/7734/distributionservice/002/plugin/
   • Go to bin again:
     • cd $CRESTEL_P_ENGINE/module/mediation/bin
   • sh  startServer_7734.sh
6. Push the files to the input path.
7. Get confirmation on the latest files from the Mediation team.

Summary

The absence of the IMEI in the Cisco SGW CDR was traced back to the plugin configuration at the site where the problem was reported. The issue was resolved by processing the data file at a different site, confirming the IMEI value in the data file, uploading the plugin from the successful site to the initial site, pushing the files to the input path, and getting confirmation on the latest files from the Mediation team.

FAQ

1. What is the IMEI and why is it important?
   The IMEI is a unique identifier for mobile devices and is crucial for various network services.
2. What was the cause of the issue?
   The issue was traced back to the plugin configuration at the site where the problem was reported.
3. How was the issue resolved?
   The issue was resolved by processing the data file at a different site, confirming the IMEI value in the data file, uploading the plugin from the successful site to the initial site, pushing the files to the input path, and getting confirmation on the latest files from the Mediation team.