Polish operator of the Plus network, Polkomtel has implemented Nokia Siemens Networks’ Circuit Switched FallBack (CSFB) solution to provid voice call services alongside LTE. CSFB seamlessly switches customers to Polkomtel’s 3G network to make voice calls when using LTE devices.

“While we rolled out ultra-fast 4G/LTE data services, it was essential for us to ensure that our LTE subscribers also enjoyed mobile voice and SMS services to have a unified service experience,” said Robert Dudzik, director of the Product and Service Development Department at Polkomtel Sp. z o.o.

Under the new contract, Nokia Siemens Networks implemented its CSFB voice call system to support voice calls in Polkomtel’s LTE network across Poland. For the LTE network launched in September 2012, the company provided its Single RAN (radio access network) platform which is based on its Flexi Multiradio Base Station. In addition, the company provided its NetAct network management system for consolidated configuration, monitoring and network optimization of Polkomtel’s GSM, 3G and LTE networks.