Metaswitch Perimeta vs Sangoma SBC Comparison: Reviews, Features, Pricing & Alternatives in 2026

Metaswitch Perimeta gives you a highly scalable, software-based session border controller (SBC) designed for modern IP communications. You can secure your network perimeter against signaling attacks and fraud while ensuring seamless interoperability between different VoIP protocols and vendor equipment. It handles complex media transcoding and signaling translation so your voice and video services remain clear and reliable across diverse network environments.

You can deploy the platform in cloud, virtualized, or hybrid environments to match your specific infrastructure needs. It helps you reduce operational complexity by providing deep visibility into network performance and call quality diagnostics. Whether you are migrating to an all-IP core or expanding your unified communications offerings, Perimeta provides the carrier-grade reliability required to maintain high-volume traffic without service interruptions.

Sangoma SBC (Session Border Controller) acts as a dedicated gatekeeper for your IP-based communications. You can protect your business from common VoIP threats like toll fraud, denial-of-service (DoS) attacks, and eavesdropping. It sits between your internal network and your SIP trunk provider, managing how data flows to ensure every call remains clear and secure.

You can use it to bridge the gap between different communication systems, making it easy to connect remote employees or branch offices to your central phone system. Whether you need to support a few simultaneous calls or thousands, the platform scales to meet your traffic demands. It simplifies complex network configurations by handling NAT traversal and media transcoding automatically, so your team stays connected without technical interruptions.

• Security & Protection Protect your network from Distributed Denial of Service (DDoS) attacks and toll fraud with automated signaling rate limiting.
• Protocol Interoperability Connect diverse SIP and H.323 devices effortlessly by translating mismatched signaling protocols in real-time for seamless communication.
• Media Transcoding Convert between different audio and video codecs on the fly to ensure high-quality calls across different device types.
• Cloud-Native Deployment Deploy your SBC as a virtualized function within AWS, Azure, or private clouds to scale capacity instantly as needed.
• Service Assurance Monitor call quality and network health with integrated diagnostics that help you identify and resolve issues before users notice.
• Admission Control Manage network congestion by prioritizing critical traffic and limiting session counts to prevent system overloads during peak times.

• SIP Security. Protect your network from malicious attacks and unauthorized access with built-in encryption and advanced threat mitigation tools.
• Interoperability. Connect different phone systems and SIP trunks effortlessly by resolving signaling mismatches between various hardware and software vendors.
• Media Transcoding. Convert voice and video formats in real-time so your callers can communicate clearly regardless of their device's native codecs.
• DoS Protection. Defend your communication lines against denial-of-service attacks that attempt to overwhelm your system and block legitimate business calls.
• Remote Worker Support. Securely connect your remote team members to the office phone system without requiring complex and often unreliable VPN setups.
• High Availability. Ensure your business never goes offline with redundant configurations that automatically take over if your primary system encounters a failure.