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Session border controller
Core Networks

Session border controller

Secure 4G and 5G signaling and media traffic

Nokia Products
Core networks
Session border controller
#session-border-controller
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Details that matter

Engineered for professionals who demand the best in performance, security, and design.

SBC for Fixed VoIP

For VoIP services provided to residential and enterprise customers, the SBC provides DoS/DDoS protection, topology hiding of the network from the access, NAT traversal, and CODEC support for G.729, G.722, & T.38 Fax.

SBC for PBX Trunking

The carrier’s SBC secures and controls access from IP-PBXs, supporting VLANs, managing overlapping IP addresses, surrogate registration, and performs media release.

SBC for VoLTE

In a VoLTE core network, the SBC controls access and allows mobility. It provides an EVS CODEC, and supports eSRVCC, VoWiFi, NPLI, S8HR roaming, and provides the network access interface for voice services on 5G networks.

SBC for Enterprise unified communications

The SBC in the carrier network secures connections to interconnect enterprises (or government networks). It provides Microsoft Teams Direct Routing allowing MS Teams access from off network phones, and hosted PBX connections.

SBC for Peering

The SBC provides a secure interconnection between service providers with a centralized routing function, intelligent transcoding, SIP-I interworking, and call admission control (CAC).

SBC for Home assistants

The SBC secures access from home assistant services (e.g. Google Home Assistant). It provides support for ICE Lite, the Opus CODEC, and enables web authentication

Challenges

The landscape of CSPs providing IMS services is changing

VoLTE deployment continues, replacing 2G and 3G circuit switched networks across the globe. 227 operators have launched commercial VoLTE service in 109 countries. VoLTE based on IMS is also required to provide voice services in 5G networks.

IP based multimedia services are critical infrastructure

The CSP faces challenges of IMS interoperability and network protection from non-compliant and misbehaving devices, scaling for massive IoT and 5G bandwidth, access and peering edge cyberattacks, and a requirement to guard against "insider" security and privacy attacks.

SBC is moving to the cloud

Networks are transitioning to the cloud, and this includes the SBC. This drives a focus on the SBC media plane, especially for transcoding and encryption since these are computationally intensive bearer plane functions, and on moving the SBC to containerized microservices on public and hybrid cloud architectures.

IMS and SBC network architecture moving to the cloud

Why Choose Nokia Session Border Controller

A field-proven SBC securing fixed, mobile, and enterprise voice services

One platform, every use case

A single SBC secures fixed VoIP, PBX trunking, VoLTE, enterprise UC, peering, and home assistant traffic.

Field-proven at scale

Deployed by operators worldwide, securing sessions across fixed, mobile, and enterprise networks.

Smooth path to VoLTE and 5G

Provides the network access interface for voice services on 5G networks alongside VoLTE and legacy VoIP.

Strong security posture

Built-in DoS/DDoS protection and topology hiding defend the network perimeter.

Deployment flexibility

Physical, virtual, and cloud-native options protect existing investment as the network evolves.

Trusted Nokia support

Backed by Nokia's global services organization for design, deployment, and ongoing operations.

Technical Specifications

Full specifications for the model

SKU -

Documentation

Download product documentation and resources

Product Datasheet

Session border controller Datasheet
Nokia Products
Core networks
Session border controller
#session-border-controller
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