Nokia to Huawei support/skills required, Technical support to design, implement and test:

Nokia HLR and HSS skills to support the export of data from the Nokia HLR and HSS and prepare the data to be imported to Huawei HLR and HSS. This includes subscriber and authentication data

Nokia PCRF skills to support the export of subscriber and policy data from the Nokia PCRF and prepare the data to be imported to Huawei

Nokia skills to support the Diameter and SS7 link integration from a Nokia network to a Huawei network

Nokia GGSN skills to support Gx interface configuration and testing from Nokia GGSN to Huawei PCRF

Nokia skills to build HLR/HSS charging templates from a HLR towards a CAP billing system

Nokia skills to build Gy charging interfaces from a GGSN and P-GW towards a Sure billing system

OTA support to modify SIM parameters - selecting a vendor, deploying and testing

Support test plan creation and execution of the test plan and solving any issues

The steps above will be carried out in trial migrations and a final cut over.