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Success of NexusVERIFIER’s proactive Testing in Mobilink’s Revenue Assurance

The deployment and success of the NexusVERIFIER Test Call Generator project attracted the attention of the radio access and core network management departments.


Overwhelming success of NexusVERIFIER’s proactive testing in Mobilink’s revenue assurance project
NexusVERIFIERTest Call Generator system proved to be so flexible and versatile, that Mobilink’s business case for their initial revenue assurance project was overwhelmingly successful. The system included:

  • Real-time test CDR Generation and Collection
  • Reconciliation of Nexus generated CDRs with Billing CDRs
  • Gap Analysis for Identification of lost CDRs in Billing Chain
  • Verification of tariff plans through automated testing round the clock, for existing and pre-launch subscriber services

The deployment and success of the NexusVERIFIER Test Call Generator project attracted the attention of the radio access and core network management departments. NexusVERIFIER will be further extended to strengthen Mobilink’s revenue and service assurance, including outbound and inbound mobile roaming services.
NexusVERIFIER Solution
Deployment Topology
With each core network interface, network-wide virtual connections are configured to many network elements. The versatility of this feature helps to provide the capability to test existing and new services with regional or location based tariff plans. Based on the test results, the revenue department was able to guide the network configuration to ensure the required billing parameters were present in their billing records to support these new location based services before service launch.
Ch. Abdul Mannan, Senior Manager Business Assurance at Mobilink, praising the flexibility said, “The ability to actually test from specific cells and check that we could identify each customer and the different time slots when calls were performed, helped to ensure that we could offer new innovative service tariff plans and support them with the right billing parameter.”
Ch. Abdul Mannan explained, "The use of the NexusVERIFIER TCG is a great success and we are taking advantage of it in a number of areas;

  • Product Pre- and Post-launch testing (Behavior and charging)
  • Testing for Post-paid and Pre-paid Products
  • TCG Results Reconciliation with various (OSS/BSS) platforms
  • Network and service quality testing
  • Account Rounding issues at different levels

For us, this has become a measuring tool for different Revenue Assurance and Fraud Management KPIs to know the completeness and accuracy level of different CDR data sources/systems"
The Revenue department was able to test both Pre- / Post-paid subscriptions, comparing fields including duration, MOC / MOT cell location, time slot of the day, customer classification SIM card, short code dialing, specific behavior patterns for tariff plans, and many more.
Mobilink’s tariff service launch from concept idea stage to a commercial launch was easy on paper, but when an innovative concept is introduced to a live network, a lot can change. Therefore, NexusVERIFIER TCG was used to test the new concept without impacting the live subscribers. To cover all the many customer segments within Mobilink, the NexusVERIFIER TCG was loaded with large pool Subscriber SIM Cards that could be used in parallel for tests.
Nexus VERIFIER TCG was also used to perform and identify fraudulent scenarios. E.g. when calls dialed with local prefixes were routed internationally, but charged as domestic.
Nationally, inter-system/network timing differences were analyzed using the CDR time stamps, which is important for charging, and to ensure that all nodes are configured to be synchronized to one clock source.
Some new services or ideas were test launched for the particular targeted geographic location. NexusVERFIER TCG allows users to perform testing in any cell coverage location, including inter-system/network nodes duration testing.
About Mobilink
Mobilink is Pakistan’s leading provider of voice and data services, bringing more people together through service excellence and product innovation. With more than 36 million subscribers, Mobilink maintains market leadership through cutting-edge, integrated technology, the strongest brands and the largest portfolio of value added services in the industry, a broadband carrier division providing next generation internet technology as well as the country’s largest network with over 9,000 cell sites making everyday a better day for its customers.
Housing Pakistan’s largest distribution and contact centre networks and an unparalleled 6,500 kilometers fiber optic backbone, Mobilink has already invested over US $3.9 billion in the country to date, with another USD 1 billion being invested in network modernization. Mobilink provides uninterrupted countrywide connectivity, unmatched customer services and international roaming in over 140 countries.
About Nexus Telecom
Founded in 1994, Nexus Telecom is a privately-held company with headquarters in Zurich, Switzerland and regional offices in Canada, Malaysia, South Africa and the UAE. With over 100 employees, Nexus Telecom is a major provider of telecom management systems, based on COTS (components off-the-shelf) to TMF standards, for network monitoring, service assurance and customer experience information.
With solutions deployed in over 100 countries, Nexus Telecom’s installed customer base spans the globe, assuring service quality and revenue streams for many of the world’s best-known telecom operators, like Deutsche Telekom AG, Telenor Group, Axiata Group, Zain Group, Orascom Group, and many others.
More information at:


 Revenue Assurance
 Call Generator

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