Polkomtel, the Polish operator of Plus, has implemented Nokia Siemens Networks’ seamless Circuit Switched Fall Back (CSFB) solution in order to provide voice call services alongside LTE.
CSFB is an alternative to VoLTE that works by signalling LTE handsets to “fall back” onto the operator’s 3G network to make a call.
The system connects the mobile CS core network to the Evolved Packet Core LTE core network, without requiring any changes in routing or charging, or effecting SMS and packet switched data.
“While operators launch new services, it’s important for them to wisely choose a solution that saves capital costs not only while addressing the immediate requirement but also in the longer run,” said Dietmar Heinrichs, head of Polkomtel customer team at Nokia Siemens Networks.
“Our CSFB solution reused existing network investments in Polkomtel’s radio and core networks, saving capital costs for the operator. In addition, the CSFB system can easily be upgraded to support Voice Over LTE (VoLTE).”
Polkomtel launched its LTE network in September 2012 and is currently using NSN’s Single RAN platform as well the NetAct network management system.
Under the new contract, NSN will implement its CSFB voice call system to support voice calls in Polkomtel’s LTE network across Poland.
“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.
Polkomtel has also announced a new partner market agreement with Vodafone today.
Under the non-equity partnership agreement, Vodafone’s multinational customers will see Poland added to their existing contracts for international managed services, while continuing to be serviced via a single point of contact.
Polkomtel has a customer base of approximately 14 million and provides services in Poland under the Plus brand.
Vodafone’s Partner Market agreements in the region include Austria, Estonia, Latvia, Lithuania, Russia and Ukraine.