Nokia Siemens Networks is offloading German research and development facilities to IBM to cut costs.
The company is transferring about 235 Munich and Berlin employees to IBM as part of the move, which will see IBM instead provide R&D services to Nokia Siemens Networks.
When the two firms got together to form the networks business, it initially resulted in hundreds of redundancies across the two businesses.
The R&D facilities transferred cover four business lines of the firm's Service Core and Applications Business Unit to a subsidiary of IBM.
The activities transferred include next-generation voice and multimedia, media gateways, mobile internet connections, and the consumer and business voice-over IP business lines, as well as technical support.
Entire teams will be transferred but will continue to deliver necessary development activities back to Nokia Siemens Networks.
They will work together with Nokia Siemens Networks' programme management, product management, architecture, technical support and system level testing teams.
The transfer is expected to be completed by the beginning of December.