Replacing a legacy convergent Nokia IN platform with a new, custom-developed solution

The architecture was designed after technical workshops defined the legacy service logic and data model. Based on this, new data models were designed for the target Telestax Java SLEE platform. Custom migration tools were then developed to handle the complex, distributed legacy data, automating the migration process for both service logic and user data.

The client's primary benefit was mitigating the significant operational risk of using a legacy, End-of-Support (EoS) platform, which was described as a "time bomb." Operationally, the new platform enabled fully automated deployment using Chef cookbooks. This significantly reduced the time required to set up new pre-production instances and ensured the complex migration was completed on-time.

The primary objective was to migrate service logic and users from a legacy SS7 IN-based platform to a new, custom Telestax Java SLEE platform. A critical goal was mitigating the risk of the old platform, which was End of Support (a "time bomb"). A secondary objective was to enable fully automated deployment of the new components using Chef.

The solution used Telestax Java SLEE as the new open platform and Java for developing the new services. Chef was used for automated deployment. The system also integrated several telecommunications protocols and technologies, including CAMEL, SIP, VoLTE/VoWiFi, and Kamailio. MySQL Cluster was also part of the technology stack.