Product Overview
ZXUN CSCF Call Session Control Function
ZTE's Call Session Control Function product - ZXUN CSCF, based on an architecture where access, control, and service are separated, implements unified control for fixed and mobile users and provides basic communication services and enriched multimedia services for these users. ZXUN CSCF, as the core control node in the IMS network, handles SIP signaling messages and provides user access control, network authentication, session control, service triggering, and QoS control functions. Meanwhile, due to its highly reliable architecture and flexible deployment, ZXUN CSCF is widely used in VoNR, VoLTE, VoWiFi, RCS, and Fixed-Mobile Convergence (FMC) networks to provide powerful and comprehensive control function. ZXUN CSCF can be deployed either on the standard ATCA hardware or on the general-purpose COTS hardware. It supports rich virtualization functions, including automatic deployment, elasticity, failure self-heal, intelligent O&M, etc.
Main Functions:
Virtualization Functions: Support automatic deployment, elastic scale-in/out, self-healing and etc.
S/PGW-C/S/PGW-U/GGSN Functions: Support the routing and forwarding function, built-in GGSN function, tunnel management function, path management function, address management and distribution function, user plane function, billing function, RADIUS function, DHCP function, IP over L2TP function, VPN access function, PCC function, DPI function, Video Optimization function, QoS function, security function, OCS load balancing function, redirection function, user data management function, message masking function, NTP function, daylight saving function, APN function, multi-PLMN function, Multi-SIM function, APN-based bearer control function.
ePDG Functions: Support security tunneling function, authentication function, session management function, user plane function, PGW selection function, QoS function, anti-DoS attack function.
SMF Functions: Support Session management function, UE IP addresses allocation and management function, QoS function, Control and coordinate UPF for charging information collection.
UPF Functions: Support packet routing and forwarding function, QoS function, Traffic usage report function, Policty execution function in user plane.
Highlights:
High Integration：Large user capacity, Low power consumption, Small footprint
Multi-access: Support 2G/3G/4G/5G simultaneously
Convergent and shared resource: Simplified network interworking
Easy O&M: One-click deployment, Automatic O&M, Elastic scaling
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