The document outlines an internship agenda covering role and objectives, testing, development, a VoLTE tutorial, and key takeaways. The intern's objectives were knowledge acquisition, impactful contributions, and creating connections. Testing contributions included validating JIRA issues and SPRs. Development work involved resolving a DPI packet overflow issue. A VoLTE tutorial was created to educate employees on 4G LTE call flows. Key learnings included gaining product knowledge, understanding tools/processes, and receiving a rewarding internship experience.

2. Agenda
• Role and Objectives
• Testing
• Development
• VoLTE Tutorial
• Key Takeaways
• Q&A

3. Role and Objectives
• Summer Intern – Sustaining Team
• Three Key Objectives
– Knowledge acquisition
Team, technology and process
– Impactful contributions
Testing, development and VoLTE Tutorial
– Create Connections
John Kirfman
Sr. Manager
Arun
Gopalakrishna
Summer Intern
Aneesh Rai
Mentor

4. Learning Curve and
Contribution
Test and Learn
• Tekpub Validation
 Validated all JIRA issues from
the Greenfield Install
• SPR Validation for 15.2
 Validated 9 minor SPRs
 Collaborated with QE teams
• SPR Validation for 15.2
 Validated 5 major issues
 Validated 2 critical issues
 Worked with dev teams
• Week 0 Tutorials
 IRIS Training
 Tek-wiki
 Whiteboard explanations
• 14.1 SP8 Testbed
 Executed automation testing suite
 Completed end to end manual
testing
• QE team members
were very helpful.
• Additional knowledge
of tools and processes.
Collaboration

5. Development
DPI Packet overflow issue
– Excessive packets being sent to DPI raising IIC alarms (packet
drops and overflows)
– Overloading G10 probes and yet not yielding any results
– Involved a 3rd party vendor component
Resolution
– Initial investigation and 3rd party vendor clarifications
– Resolved the issue by identifying a version mismatch
– Initiated and completed an enhancement request
• Limit maximum packets sent to DPI to 20
• Check and print version number and packet limit as an option
Results

6. VoLTE Tutorial
Provide a 4G LTE call flow tutorial to all employees, especially new
hires
 Assuming they have no prior LTE knowledge.
 Covering all the key use cases with high quality content.
 Aligned with our products and solutions.
 Provides an engaging experience.
• Call flows can be related to actual use cases.
• Better understanding of customer issues.
• Example driven tutorials – IRIS and mainly ISA.
• Test cases can be visualized.
• Faster triaging, testing and resolution time.
Purpose
Value
Addition

7. VoLTE Tutorial
Daily Reviews
Checking the scope
and content regularly.
Connecting me with
the right resources.
Reviews by Leads, Architects and Managers
In depth review of
ISA packet details,
explanations and
KPIs.
Reviewed with
management.
Feedback sessions
Focus group
sessions with new
hires.
Equivalent to
customer feedback.
Multiple test calls on FVO and production – QE team.
Research, understand and translate VoLTE
knowledge.
Introductory videos using VideoScribe for a more
engaging experience. Process

8. VoLTE Tutorial – Final outcome
Reviews

9. Key Takeaways
Learning
– Gained product knowledge: IRIS – IPI & ISA
– Insight into tools, technologies and processes
– Understanding the DPI code flow and p-lists
– Transferable knowledge set
• VoLTE call flow and the telecom industry
Acknowledgements
– Supportive Management
– Mentoring and guidance
– Collaborative and helpful colleagues
– Rewarding Internship Experience