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Portability – a win-win proposition for CSPs and customers

Mobile number portability (MNP) creates a level playing field for communications service providers (CSPs). It compels them to enhance their quality of service and avoid customer churn.

With MNP, the three-tier mobile number hierarchy is transformed into a flat structure independent of operators and locations. This will affect call routing methods, billing systems and event-to-cash processes of CSPs, according to experts at Infosys.

In an article published in Voice&Data, our experts discuss the relationship between originating, donor and recipient networks, and databases across call routing methods:

  • All query call is the most efficient in terms of network capacity utilization, but it involves substantial investment
  • Onward call routing is easy to implement, but the settlement process is complex
  • Query on release uses signaling trunks efficiently, whereas donor network resources are not reserved for call duration
  • Call drop back depends on the donor network for routing information

Published with the permission of Voice&Data

Our experts

Sanjay Kumar Verma, Principal Consultant, Enterprise Solutions, Infosys

Sanjay Kumar Verma, Principal Consultant, Enterprise Solutions, Infosys

Sanjay has more than 11 years of experience in IT solutions, particularly in billing, enterprise resource planning (ERP) and business intelligence systems. He has worked on several cross-functional business process modeling and automation programs in the telecom domain. His experience also comprises evolution of in-house IT functions in Greenfield CSP establishments. He can be reached at

Deepak Kumar Jha, Lead Consultant, Enterprise Solutions, Infosys

Deepak Kumar Jha, Lead Consultant, Enterprise Solutions, Infosys

Deepak has nine years of experience in operations support system and billing support system (OSS / BSS). He has worked on package-based solutions particularly in mediation, interconnect billing, roaming solutions, and provisioning systems. His experience in multi-phased IT environments such as implementation, operations, support, and maintenance has helped him serve several system integrators and service providers. He can be reached at

Related reading

Learn more about Infosys Telecom Billing practice

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