Our High-Performing Core Network
Fully virtualizable on VMware, K8S, Docker and OpenStack containers
Short Message Service Function(SMSF)
It receives and routes SMS messages, queries the UDM to obtain user subscription data and service-related AMF information, and forwards the SMS to the AMF via the N20 interface. The AMF then delivers the SMS to the UE based on NAS signaling without the need to establish a user plane data session.
Key Benefits

SMS Activation

SMS Deactivation

MO SMS for UE in IDLE/CONNECTED Mode

MT SMS for UE in IDLE/CONNECTED Mode

OAM Management: Configuration Management, Alarms, Performance Data, and Other Services

Emergency Session Service
SMSF Solution
- Supports session management and slice policy control. In 5G SA network deployment, with the increasing complexity of session control and network slicing requirements, SMSF has become a critical component to ensure session policy consistency. By centrally managing the interaction between UE and SMF , SMSF ensures that session requests are quickly and accurately routed to the appropriate SMF instance.
- SMSF supports network slicing, roaming, and cross-domain session management, and works in coordination with core network elements such as UDM, NEF, and PCF to achieve flexible and scalable session policy distribution capabilities. This architecture is a key part of the 5G core network session and policy control system, providing strong support for operators to reduce operational complexity and improve network service quality.
Features
Interfaces/Protocols
- N20, N21, Nnrf, E
- Network Protocols: IPv4/IPv6
- Signaling Protocols: HTTP 2, MAP
- Management and Maintenance Protocols: HTTP, HTTPS, SFTP, SSH
Security/Routing
- Supports overload protection.
- Supports user signaling tracing.
- Supports encrypted transmission of message data.
- Supports routing and forwarding messages via STP and IP-SS7-GW.
- Supports security features such as DoS/DDoS attack protection and SQL injection prevention.
Network Management
- Signaling Tracing
- Log Management
- Alarm Management
- Topology Management
- System Resource Monitoring
Reliability
- Supports active-active disaster recovery: Multiple SMSFs provide services through load balancing mode.
- Multi-process design: If one service process fails, other service processes can continue to provide services.
- SMSF supports active-standby disaster recovery: When one SMSF fails, the system automatically ensures continuous service from another SMSF, with a switchover time of no more than 10 seconds.
Deployment Methods
- Supports Kubernetes and OpenStack.
- Supports MANO platform management.
- Supports bare-metal server deployment.
- Supports KVM virtual machine deployment.