Compare OpenScape Session Border Controller vs. ProSBC in 2026

OpenScape Session Border Controller

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Description

Mitel's OpenScape Session Border Controller (SBC) is a highly adaptable solution that offers extensive SIP interoperability, sophisticated media management, and strong security features. Tailored for VoIP infrastructures, this controller efficiently terminates SIP sessions on the WAN side, which helps ensure that traffic comes from verified sources while also scrutinizing SIP and media packets for any protocol discrepancies or irregularities. The OpenScape SBC actively regulates firewall "pin holes" for RTP and SRTP media streams. Its compatibility extends to Mitel’s MiVoice Business, MiVoice MX-ONE, and MiVoice 5000, in addition to OpenScape Voice, OpenScape 4000, and OpenScape Business, making it a versatile choice for organizations of all sizes. This solution accommodates various deployment methods, including virtualized software for VMware ESXi, and is set to support commercial off-the-shelf hardware like Lenovo servers in the near future, alongside a gateway option featuring Kontron servers. As such, it provides organizations with the flexibility to choose the most suitable infrastructure for their specific requirements.

Description

ProSBC stands out as a robust, carrier-grade Session Border Controller tailored for both service providers and enterprises, offering advanced functionalities. Capable of handling up to 60,000 simultaneous sessions, it boasts features such as media transcoding, STIR/SHAKEN compliance, fraud detection, and configurations designed for high availability. Its versatility allows it to operate seamlessly across a range of platforms, including VMware, KVM/Proxmox, AWS, Microsoft Azure, and bare-metal servers. This makes ProSBC an ideal choice for diverse applications like SIP trunking, enterprise SIP trunking, CPaaS access, and TDM-to-SIP migration. Furthermore, it is designed to be interoperable with leading VoIP platforms and carrier networks, ensuring wide compatibility. The system is user-friendly, with a web-based interface that simplifies deployment, operation, and management. Additionally, the optional TB Analytics feature pack provides valuable insights for diagnosing network issues. Importantly, the software's scalability—from a modest 100 sessions to a robust 60,000—ensures that your SBC can grow alongside your needs, providing flexibility and reliability as your demands evolve. This adaptability makes ProSBC an excellent investment for future-proofing communications infrastructure.