Louis Du Plessis

Senior Engineer: Switching High Level Support MTN SA Oct. 2001 – March 2014 Reporting to the Manager Switching High Level support: • CSR handling. Logging CSR’s with Ericsson for faults caused by loading of new software. • Software upgrades: R8 - R9.1 From R9.1 - R10 and From R11 - R12 – R13.2 • Loading and testing of new BTS software from R8 – R9. R9 – R10. R11 – R12 - R13.2 • Testing of new supplier equipment (Huawei BSCs for Nigeria and Huawei BSCs and MSC’s for Uganda) • Building and Testing of new test plant. • Integration and testing of all new nodes to ensure correct correction level. • Fault finding on all BSC’s, MSC-S, SCP’s, HLR’s, STP’s • Fault finding using tools network optimization (FACTS, Passive monitoring) • CP slides from APZ 212 20 – APZ 212 30. APZ 212 25 – APZ 212 20. APZ 212 30 – 21233. APZ 212 33- APZ21240. APZ 212 40- APZ21250 • Assisted with BYB202 – BYB 501 swap outs. • Implementation of HLR redundancy • Transfer of HLR data from old HLR to New HLR. • Implementation of International gateway. • Preparation of Switching, Signaling, Services for O & M. • Testing and implementation of new services e.g. clocking trough the Internet. CAMEL. • Testing and writing rules and standards for Changing STP structure from GTRC routing to MTP routing. • Compiled the standards of the first remote BSC in Africa. • Integration and testing of the first remote BSC in Africa. • Tested and implemented TG sync across the MTN SA network. • Compiled the implementation instructions from RBS2216 extended range • Tested and implemented 2216 RBS extended range • Testing and loading of MSC-S and MGW new software from 4.1 - 5.6 • Testing and integration of AMIDO (swapping out of old monolithic MSC to MSC-S and MGW) project • Testing and integration of GNP • Testing and integration of SIGTRAN • Testing and integration of M2PA routing

For Managing Core Network (SS/BSS), Network Data Configuration and Control and 2nd line functional teams with total staff strength 10 to carry out the following: • Core Network Rollout (Deployment), Integration and Cut over. • Core Network Operations, Capacity Building, Enhancements and Optimization. • Core Network Resources and Capacity Utilization. • Core Network Hardware and Software Upgrades for e.g Ericsson CME20 R8 – R 9.1. R9 – R10, APZ 21230 – APZ 21233, APZ 21233 - APZ 21240, IOG-20 – APG40 Swap outs. • Deployment of Second vendor BSS by swapping out operational ones (Swap out of Ericsson BSCs with Huawei BSCs and BTSs). • Expansion of Core Network Nodes by in-house resources and this reduced the implementation costs. • Re-dimensioning of MSC’s, BSC’s, SCP’s, STP’s and HLR’s. • Deployment of TSC structure. • Integration of STP structure on HLR’s using strict SS7 rules. • Integration of STP structure. • Establishment of O&M procedures for maintenance. • Establishment of Core Network Operations and Maintenance, Roll out, Integration and Cut-Over Strategy, Processes and Procedures. • Deployment and Integration of New Networks (GPRS, MMS) and evolution to 3G. • National and International Interconnectivity with establishment of Roaming agreements with Roaming Partners. • Network Configuration and Data Control. • Network Technical Audit and Reporting. • Network Quality of Service and Performance Measurement and Analysis. • Core Network Project and Program Management. • Vendor Negotiation for new products • Prepare and manage the annual OPEX budget • Teletraffic Engineering and Analysis using Post Processing Computer Aided Tools. • Knowledge Transfer, Competence Development and Training Developments for Skilled Staff Resources with strong emphasis on Change Management. • Establishment and leading of Performance task team giving MTN SA • Standardization of Global titles • Standardization of B-number tables

Snr BSS Engineer MTN SA April 2000 – Sept 2001 Reporting to BSS Manager • Acceptance, Integration of BSS Switches. • Site re-parenting. 6500 TRX’s in one year (2001). • Preparation of Switching, Signaling, Services and O & M Plans. • Standardization DX clusters. • Integrating MTN SA transmission network on DXX. • Switching Network Configuration and Data Control on all BSS nodes. • Establishment Testing Procedures for all new nodes. • Training of new Engineers. • Support for all BSS activities. • Planned and ensured successful upgrade all BYB202 nodes to 1024 TRX’s.

Reporting to SMC Manager • Acceptance and integration of Network elements onto the network • Automation of alarms • Dashboard integration for all network elements • Staff shift allocations • Monitoring of all Network elements and escalation of all faults