Huawei has successfully completed a circuit switched (CS) fallback voice call with a third-party handset provider. Conducted at Huawei's LTE and Evolved Packet Core (EPC) Interoperability Testing Lab in Shanghai, the call demonstrates that operators using LTE/EPC to provide pure data services will still be able to leverage its existing CS network to provide voice services. 

"The successful completion is another example of our efforts to provide LTE/EPC end-to-end solutions to global operators to optimize their networks. Huawei is committed to working with our peers and partners to foster a vibrant telecommunications industry,"said Xu Weizhong, President of Packet Core Product Line, Huawei.

According to the standard solution defined by 3rd Generation Partnership Project (3GPP), CS Fallback is considered the preferred solution for the early stages of LTE/EPC network deployment. From the user perspective, it minimizes call establishment delay and supports smooth handoffs. For operators, the solution enables them to make full use of their existing networks to protect investments.