Voice Security & Routing
Enterprise SBC services for secure voice environments and advanced call routing.
Overview
We provide session border controller services that secure voice environments, manage signaling, protect communication paths, and ensure reliable interoperability between platforms.
Our work includes deployment, configuration, optimization, and ongoing support for SBC systems in both enterprise and service provider settings. With precise policy control, secure routing, and continuous monitoring, organizations gain a stable and protected communication layer.
We offer our own managed SBC platform that can be deployed across most environments—on-premises, cloud, or hybrid. Fully managed by our team, it provides enterprise-grade security and routing without the overhead of maintaining SBC infrastructure yourself.
For organizations with existing investments or specific requirements, we also implement leading industry platforms (Oracle, AudioCodes, Ribbon, Cisco CUBE) and enterprise-grade open-source solutions (FreeSWITCH, Kamailio). We handle deployment, configuration, and ongoing support regardless of platform.
Capabilities
Protect against toll fraud, denial of service, and unauthorized access. SBCs enforce authentication, rate limiting, and topology hiding at the network boundary.
Translate between SIP variants, codecs, and header formats. Enable interoperability between systems that otherwise wouldn't communicate cleanly.
Handle far-end NAT, manage media anchoring, and maintain RTP paths through firewalls without opening excessive port ranges.
Manage concurrent call capacity, enforce bandwidth policies, and prevent oversubscription that degrades voice quality.
Route calls based on time, destination, caller ID, or custom rules. Implement least-cost routing, load balancing, and failover logic.
Transcoding between codecs, SRTP/RTP conversion, DTMF interworking, and call recording integration at the SBC layer.
Services
Hardware, virtual, or cloud SBC deployment with network integration and initial configuration.
Dial plans, routing rules, security policies, and interop profiles tailored to your environment.
Move from legacy systems or upgrade firmware with minimal disruption and rollback planning.
Validate connectivity with carriers, UCaaS platforms, and PBX systems before production cutover.
Analyze call flows, reduce latency, eliminate one-way audio issues, and improve overall quality.
Ongoing health monitoring, alerting, and incident response for production SBC infrastructure.
Options
Our own SBC solution deployed and fully managed by intSignal. Runs on-premises, in your cloud, or as a hosted service. No infrastructure overhead—we handle updates, monitoring, and support.
Implementation and support for Oracle (Acme Packet), AudioCodes, Ribbon, Cisco CUBE, and other commercial SBC platforms. Ideal when vendor certification or specific features are required.
FreeSWITCH, Kamailio, and other enterprise-grade open-source SBCs. Full customization, no licensing costs, with professional deployment and ongoing support from our team.
Use Cases
Secure connection point between your PBX and external SIP providers with fraud protection and failover.
Certified SBC deployment connecting Teams Phone System to PSTN carriers.
Bridge Cisco, Avaya, and other platforms that use incompatible SIP implementations.
High-capacity SBC for contact center environments with call recording and analytics integration.
Related Infrastructure
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Explore Wireless Solutions →FAQ
We offer our own managed SBC platform deployable across on-premises, cloud, or hybrid environments. We also implement industry platforms including Oracle/Acme Packet, AudioCodes (Mediant series), Ribbon/Sonus, Cisco CUBE, and enterprise open-source solutions like FreeSWITCH and Kamailio. Platform selection depends on your environment, scale, and whether you prefer a fully managed solution or self-hosted infrastructure.
Hardware appliances provide dedicated resources and predictable performance for high-volume environments. Virtual SBCs (VMware, Hyper-V, KVM) offer flexibility and easier scaling. Cloud-native options (AWS, Azure) work well for distributed deployments. We assess call volume, latency requirements, and infrastructure to recommend the right approach.
One-way audio typically results from NAT/firewall misconfiguration or incorrect media anchoring. We capture SIP traces and RTP streams to identify the root cause—whether it's SDP issues, asymmetric routing, or codec mismatches. SBC configuration adjustments, RTP proxy settings, and firewall rules usually resolve these problems.
Yes. SBCs terminate TLS on one side and re-originate on the other, allowing different certificate chains per trunk. For SRTP, the SBC can pass through encrypted media or perform SRTP-to-RTP conversion when connecting to legacy systems. We configure certificate management, cipher suites, and media security policies based on your compliance requirements.
We deploy active-standby or active-active SBC pairs with sub-second failover. Configuration includes shared virtual IPs, session state synchronization, and health monitoring. For geographic redundancy, multiple SBC clusters can be deployed with DNS-based failover or anycast routing.
Capacity depends on transcoding requirements, media anchoring, and features enabled (recording, encryption). Pass-through calls without transcoding are lowest load. We size based on peak concurrent sessions, calls per second, and whether transcoding is required between codec types.
Contact us to discuss your current telephony environment and how SIP trunking can reduce costs and support your unified communications strategy.