Dialogic Session Border Controller
Secures and manages real-time voice and video traffic between networks, ensuring quality, interoperability, and compliance.
Why Choose BorderNet SBC
Public and Private Cloud or On-Premise Deployment
Enghouse Session Border Controller solutions support cloud, virtual and on premise deployment models, so telecom operators can align with existing infrastructure plans and new 5G and IMS services. Whether services run in a private data center, on public cloud infrastructure or in hybrid models, the platform is ready to deliver:
- Seamless integration with existing OSS/BSS systems
- High availability and scalability to meet carrier grade performance targets
- Low latency processing for real time voice and messaging services
- Geo redundancy and disaster recovery designed for mission critical networks
- Compliance with telecom and regulatory standards
This flexibility lets operators launch services faster, lower infrastructure cost and keep control of sensitive data while staying ready for future network evolution.
Centralised Management, REST API and Zero-Touch Provisioning
Centralize service management with a GUI and REST API that simplifies SBC operations and connects cleanly with your OSS/BSS stack. The platform is built to reduce operational effort while keeping full visibility and control across services and network elements.
- Single management interface. A user friendly GUI supports rapid provisioning, configuration and monitoring across services and network components
- REST API access. Secure, standards based APIs support automation, orchestration and service assurance flows
- Zero touch provisioning support. Fits high volume, multi tenant environments that need repeatable, script driven activation
- Faster time to market. New offers can be launched and scaled without adding manual overhead
Whether you manage traditional voice or modern IP based deployments, the platform helps telecom operators cut complexity and respond faster to service and traffic changes.
Carrier-Grade Session Capacity and Throughput
The Enghouse SBC platform is designed for telecom workloads that need high scale, predictable behavior and tight service level targets. Performance is engineered to handle heavy session loads and rapid signaling bursts without service impact.
- High session density. Supports more than 100,000 concurrent sessions per instance for peak traffic periods
- Real time call handling. Manages up to 1,000 calls per second per instance with low latency and high availability
- Horizontal scalability. Scales across many instances or data centers as subscriber and traffic volumes grow
- Resilient architecture. Built in failover, load balancing and geo redundancy help keep services online during faults
Signalling and Media Security, Fraud Protection and Access Control
The session border controller is designed with security as a core requirement, with protections tailored for telecom networks and SIP based services. Security features address fraud, privacy, compliance and access control in a single platform.
- End to end encryption. Protects SIP signaling and media with TLS and SRTP to shield voice and messaging from interception or tampering
- Fraud protection. Real time analytics for call pattern analysis and thresholds that block toll fraud, robocalls and unauthorized access
- STIR/SHAKEN compliance. Caller ID attestation helps reduce spoofing risk and supports regulatory requirements in North America and other regions
- Secure API access. Role based access control, OAuth2 support and full audit logging for API activity
- Hardened deployment options. Supports secure on premise and cloud deployments aligned with GDPR and other frameworks
This layered approach helps telecom operators meet regulatory demands, protect subscriber trust and keep VoIP, UCaaS and IMS services stable and secure across the network.
Five-Nines Availability Design with Geo-Redundant Failover
Telecom operators across many regions rely on Enghouse SBC solutions to run critical services at scale every day. The platform has been tested in large, complex environments where service continuity and consistency are essential.
- Carrier grade uptime. Designed for 99.999 percent availability to support mission critical communication services
- Global reach. Active in multi regional deployments across North America, Europe, Asia Pacific, Latin America, Africa and the Middle East
- High performance at scale. Proven to support millions of calls and sessions each day with stable behavior and fast response
- Resilient architecture. Active standby failover, geo redundancy and strong disaster recovery options support business continuity plans
- Validated in production. Deployed in complex infrastructures, including IMS and VoLTE cores, SBC clusters, carrier messaging platforms and modern contact centers
With live deployments across varied telco environments, the platform lets service providers operate with confidence at global scale and deliver consistent experiences to subscribers in each market.
Interoperability Across 4G/5G Cores, UC Platforms and Legacy TDM
Enghouse SBC solutions keep services connected across many network types, platforms and protocols so operators can modernize networks without breaking existing services. Both legacy and modern environments are supported during migration.
- Modern network integration. Native support for IMS, VoLTE and VoNR deployments that align with 4G and 5G core architectures
- UC platform compatibility. Works with platforms such as Microsoft Teams, WebRTC and hosted UC systems for enterprise collaboration
- SIP trunking support. Connects to SIP trunk providers and SBCs to deliver scalable voice and multimedia services
- Legacy system bridging. Maintains ties with TDM systems, legacy PBXs and older telephony platforms to support staged migration
- Vendor agnostic deployment. Fits multi vendor environments, with broad compatibility across softswitches, gateways and media servers
This breadth of compatibility helps telcos modernize at a pace that matches budgets and roadmaps while keeping service continuity for existing customers and extracting more value from prior investments.
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Session Border Controller for Voice Networks
BorderNet SBC is a software-based Session Border Controller (SBC) designed to manage and secure SIP voice traffic across modern and legacy networks.
It supports telecom operators, service providers, and enterprises by enabling interworking between IMS, VoLTE, VoNR, Microsoft Teams, WebRTC, and traditional SIP infrastructures. Whether deployed in the cloud, on-premise, or in virtualised environments, BorderNet adapts easily to your infrastructure and scaling needs.
With strong encryption, SIP header control, and built-in support for regulatory frameworks like STIR/SHAKEN and lawful intercept, it ensures secure and compliant communications.
BorderNet also simplifies operations with centralised GUI, full REST API support, and flexible licensing models, so you can focus on delivering voice services, not managing complexity.
SIP Interworking, Security and Compliance Capabilities
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Advanced Media Handling and Transcoding
BorderNet SBC delivers software-based media handling and transcoding to support voice and video traffic across diverse networks and endpoints.
It supports CODEC interworking, HD voice, and adaptive media path control in cloud, virtualised, and on-premise environments. This enables consistent media quality across IMS, VoLTE, WebRTC, and enterprise UC platforms.
Centralised provisioning and network-wide licensing simplify media policy management and help reduce operational costs at scale.
Real-Time Analytics, Lawful Intercept and RTT/TTY Accessibility
BorderNet SBC provides real-time insight into SIP signalling and media performance using an integrated Elastic Stack environment. Operators can detect anomalies, monitor session activity, and maintain voice quality across networks.
To support regulatory compliance, it includes built-in capabilities for identity authentication, lawful monitoring, and accessibility.
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Central or Edge Deployment with Network-Wide Licensing
BorderNet SBC is infrastructure-agnostic, supporting deployment across cloud-native, virtualised, and physical environments. It delivers consistent features and performance, whether deployed centrally or at the edge.
Its lightweight software architecture optimises compute usage, with dynamic load distribution across vCPUs and minimal idle capacity.
You can deploy and manage SBCs across your network with:
- Centralised GUI for simplified configuration and monitoring
- Full REST API for automation and OSS/BSS integration
- Network-wide licensing to reduce cost and support flexible expansion
IMS, Microsoft Teams, IPv6, H.323 and UCaaS Integration
IMS / VoLTE / VoNR
Supports full IMS architecture and integration with VoLTE and VoNR deployments in next-generation mobile networks.
Microsoft Teams Certified
Officially certified for Direct Routing and Operator Connect. Connect Teams users to public telephony with ease. Read the certification overview.
IPv4 ↔ IPv6 Transition
Supports dual-stack environments to simplify migration and interoperability between IP versions.
Legacy Protocols (SIP / H.323 / NGN)
Maintains compatibility with older voice systems, including H.323 and NGN SIP, for smooth coexistence.
Hosted UC / PBX / CCaaS / UCaaS
Works with unified communications platforms and cloud-based contact centre services.
WebRTC & SIPREC
Bridges WebRTC endpoints with SIP infrastructure and enables SIP-based call recording for compliance and analytics.
Voice networks are changing fast. We help operators stay ahead with a cloud-native SBC that secures traffic, simplifies operations and adapts to your infrastructure.
From SIP trunking to IMS, from Microsoft Teams to WebRTC, BorderNet SBC makes it easier to connect, protect and grow without the burden of legacy systems.
It’s time to simplify, scale and move forward with confidence.
FAQs
Session Border Controller
Yes. A single BorderNet SBC instance can handle more than 100,000 concurrent sessions and around 1,000 sessions per second, which fits carrier interconnect and IMS roles as well as high density enterprise SIP trunking. Several instances can be combined with central element management and FCAPS control for larger fabrics across data centres and cloud regions. This makes the same SBC suitable for small edge roles and large core deployments.
BorderNet is software-based and runs on public cloud (AWS, Azure, GCP), private cloud and virtualised environments (KVM/OpenStack, VMware), or bare-metal COTS servers. It can be deployed on-premises, in the cloud or in a hybrid model, with high availability and geo-redundancy in each case.
The Dialogic SBC applies several layers of SIP and media security. It hides internal addresses, inspects SIP messages, filters malformed or hostile traffic, and enforces access rules. Encryption options include TLS and IPsec for signalling and SRTP for media, so voice and video sessions are protected in transit. Features such as message flood protection, dynamic access lists, bandwidth control and overload handling help guard against DDoS, toll fraud and service abuse on carrier and enterprise borders.
The Enghouse BorderNet SBC is certified for Microsoft Teams Direct Routing and supports Operator Connect integrations. It connects Teams tenants to public telephony and SIP trunks while handling SIP to Teams signalling, media negotiation and security. This lets service providers and operators offer Teams based voice services with carrier grade protection, routing and analytics while keeping control over numbering, policies and interconnects.
BorderNet SBC provides detailed insight into SIP signalling and media performance, with real time statistics and integration with Elastic based analytics for deeper views of sessions and trends. For compliance, it supports STIR/SHAKEN caller identity, lawful intercept interfaces, SIPREC recording and features for accessibility such as RTT and TTY. These functions help operators meet regulatory duties, support audits and feed quality and capacity analysis across voice networks.
BorderNet SBC includes STIR/SHAKEN capabilities so operators can sign and verify caller identity on SIP trunks. This helps reduce spoofed caller IDs and supports regulatory frameworks in markets that require attestation for voice traffic. Combined with call routing policies and fraud controls, these features allow providers to block or treat suspect calls differently and give enterprises cleaner traffic on inbound SIP connections.
BorderNet SBC is designed for mixed network environments. It supports IMS architectures, VoLTE and VoNR deployments, and can act at access or interconnect borders in mobile and fixed networks. At the same time it maintains compatibility with legacy SIP, H.323 and NGN platforms, and supports IPv4 and IPv6 together, so operators can move toward 4G and 5G cores while keeping ties to older systems and services.
Dialogic BorderNet SBC provides software based media handling and transcoding so calls can flow across different codecs, networks and devices. It supports codec interworking, HD voice and media path control for SIP and WebRTC traffic across cloud, virtual and on premise deployments. Native software transcoding uses multi core resources efficiently, so operators and enterprises avoid separate hardware for media conversion and can adapt policies as traffic patterns change.
A firewall focuses on general IP traffic and ports, not on SIP sessions or media flows. A PBX manages internal call features and routing for users. A Session Border Controller sits at network borders, understands SIP signalling and media, and applies call level policy, security, routing and media handling between networks. Dialogic BorderNet SBC can sit in front of PBXs and UC platforms, and alongside firewalls, to provide SIP aware control and protection for VoIP, video and collaboration services.
Service providers use Dialogic SBC for carrier peering, SIP trunking, access borders in IMS and VoLTE, and as a secure edge for hosted UC and contact centres. Enterprises and public sector bodies use SBC instances for SIP trunk connectivity, Microsoft Teams and UCaaS integration, and secure links to hosted PBXs or contact centre services. In each case the SBC controls SIP sessions, protects voice networks and enables interworking between different systems and providers.
An SBC ensures secure VoIP and multimedia communication by performing functions like topology hiding, traffic encryption, media transcoding, and SIP call routing. It also supports STIR/SHAKEN protocols to prevent caller ID spoofing and enhances caller authentication.
A Session Border Controller (SBC) is a network element that provides secure and efficient communication between different networks. It ensures signaling and media control while supporting protocols like WebRTC and Diameter Protocol for seamless connectivity and security.
The Dialogic BorderNet Session Border Controller is a software based Session Border Controller that secures and manages SIP voice and video traffic at the edge of IP networks. It sits between service provider, enterprise and cloud networks, controls call setup and media, protects against attacks and fraud, and normalises SIP so different networks and platforms can work together. It is used for carrier peering, SIP trunking, IMS and VoLTE cores, and enterprise connectivity for services such as Microsoft Teams and hosted UC.
SBC comparison helps enterprises select the best session border controller based on factors like scalability, security features, deployment options, and compatibility with existing network infrastructure.
An SBC server acts as a central hub for managing session control, signaling, and media processing. It integrates with SIP SBC devices and enterprise communication platforms to provide seamless and secure communication.
In the 5G era, SBC telecommunications provide advanced signaling, secure media interworking, and support for next-generation applications. They ensure seamless integration of VoIP, SIP, and WebRTC in 5G networks, enhancing service quality and reliability.
The Diameter Protocol supports advanced signaling capabilities for session management and security. SBCs use this protocol to ensure compatibility with next-generation telecom services like VoIP, SIP SBC, and 5G communication networks.
SBC vendors offer a wide range of solutions, including VoIP SBCs, SIP SBC devices, and cloud-based SBC services. These solutions cater to diverse telecom and enterprise needs, ensuring secure and reliable communication.
BorderNet SBC sits at borders where traffic moves between networks. Typical placements are at interconnect points between carriers, between access and core networks, at the edge of an enterprise network that connects to SIP trunks, and in front of UC platforms such as Microsoft Teams or hosted PBXs. In each case it controls SIP signalling and media streams that cross that border, applies policy, and hides internal network structure from outside parties.
BorderNet SBC uses one software base across several deployment models. It can run in public clouds such as AWS, Azure and Google Cloud Platform, in private clouds on platforms such as VMware, KVM and Hyper-V, and on commercial off the shelf servers such as HP DL380 and DL20. This lets operators run the same Session Border Controller in central data centres, edge sites or cloud regions while keeping a consistent feature set and management model.
