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Multiple Numbers on Single SIM Devices

16 December 2015
Case study
Multiple numbers on single SIM devices

Multiple Numbers on Single SIM Devices

Incorporated BYOD (Bring Your Own Device) concept through a mobile application that allows multiple virtual phone lines to be active on a single SIM card without need for a new device or swapping personal or corporate SIMs while adhering to all organizational security protocols.

Key Requirements

  • Build virtual SIM functionality to have more than one active number on single SIM without the need for a new device or swapping personal or corporate SIMs, it should also supports both feature phones and smartphone’s.
  • Develop a user friendly interface for easy navigation within the application.
  • Verification and authentication of call logs and user profile using user’s phone number. Know More >>

Key Contribution

  • Built scalable application with adherence to Model-View-View-Model (MVVM) pattern which allowed faster application development through simultaneous backend and UI development.
  • Initiated communication between mobile client and the centralized server using HTTP and JSON.
  • Integrated the application platform into the operator network using standard network interfaces like INI (inter network interface) and ICI (inter carrier interface). Know More >>


  • Enabled UI designer and backend developers to work simultaneously by using MVVM pattern of programming which reduced overall time for application development by 30%.
  • Better UX within the application improved the customer experience. Know More >>
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Multiple Numbers on Single SIM Devices