ITWorx Performs Complete Testing for Mobilis Huawei Convergent Billing System (OCS 5.5)

Customer Profile

Mobilis is the largest mobile operator in Algeria which have 15 Million Subscribers; offering its customers post and pre-paid offers, SMS / MMS, international roaming, voicemail, Internet billing, free notification of the balance after each call, free call to One or more favourite numbers

The Challenge

Mobilis was facing critical obstacles using the Ericsson CS3.0 system; firstly, the current existing billing postpaid system can ‘t be integrated with Ericsson CS3.0, and secondly, there was a lack in customer experience management and this lead to hindering business growth. As a result of these obstacles, Mobilis decided to move to Huawei Convergent Billing System and CRM to gradually replace the current system.


As one of Huawei’s Delivery Service Vendors (DSV), and under Huawei’s Accountability, ITWorx was chosen to perform needed testing activities for Mobilis CBS.

The Solution

ITWorx has the largest team of certified Huawei engineers in the region, with twenty-three (23) official technical experts in Huawei technologies who are eligible to be engaged in any Huawei-based project.


Based on ITWorx solid experience in testing different Telecom systems, ITWorx team has reviewed all the requirements, test cases; and created new ones to thoroughly investigate all possible scenarios.


ITWorx provided an onsite team of Telco professionals for twenty months to be responsible for the delivery of complete testing services based on Mobilis CBS and to carry out all the test cases including the back-end scenarios.


ITWorx team was responsible for the delivery of the testing service for Huawei CBS including these modules: EVC, UVC, PRM, Provisioning, Offline Mediation, OCS5.5, Billing Care (included in OCS), LBI report (included in OCS).


ITWorx Team were not only responsible for performing testing activities on Mobilis CBS, but their role extended to coordinate acceptance through performing a UAT phase helping Mobilis to find out whether the system is ready for technical use giving business confidence that the delivered solution has addressed the specified business requirements. ITWorx Team were also part of supporting CBS lunch activities.


Testing activities incorporated extensive types of tests including:

  • Interoperability test (IOT) to verify interface connectivity and accuracy of interface function realization
  • Function Test to verify the feasibility of important applications, connection between systems parts, and stability of the test environment
  • Performance Test to check the capability of the system and to find out the system’s bottlenecks
  • End to end test (E2E test) by simulating the final user use scenario to check whether all service functions of the entire system
  • UAT (User Acceptance Test) comparing the performance of the system to the business requirements