AudioCodes Mediant 800B Enterprise SBC – 6 FE/GE Port Pairs, 250 SIP Sessions, Active/Standby Failover (M800B-ESBC)

The AudioCodes Mediant 800B (M800B-ESBC) is a 1U Enterprise Session Border Controller that combines robust SIP trunking security with integrated analog gateway capability. Supporting up to 250 SIP sessions, it features six Fast Ethernet or Gigabit Ethernet port pairs in active/standby configuration for network interface failover — ensuring continuity if a primary link fails. Microsoft Teams Direct Routing certified, it serves as an all-in-one SBC and gateway for enterprise sites migrating from legacy PBX to cloud UC platforms.

The Telecom Spot Take

What sets the Mediant 800B apart from simpler SBCs is its combination of SBC functionality with integrated analog FXS and FXO ports — giving you a single device that handles both SIP trunk security and legacy analog phone or PSTN line connectivity. For mid-size enterprise sites running a mix of SIP trunks and analog fax machines, elevator phones, or emergency lines, this avoids the need for a separate analog gateway in the rack. The six active/standby FE/GE port pairs add network interface redundancy that entry-level SBCs don't provide. If you're deploying Microsoft Teams Direct Routing at a campus or regional office and still have legacy analog endpoints to support, the Mediant 800B is the platform that handles both requirements in one 1U unit.

Key Features

• Up to 250 SIP sessions — handles mid-size enterprise and regional office call volumes
• 6 FE/GE port pairs, active/standby — automatic failover to standby interface if primary link fails
• Integrated analog gateway — supports FXS and FXO ports for legacy phones, fax, and PSTN analog lines
• Microsoft Teams Direct Routing certified — purpose-built SBC for Teams Phone PSTN connectivity
• SIP security — TLS/SRTP, topology hiding, DoS mitigation, and SIP normalization
• 1U rack-mount — compact enterprise form factor for IDF closets and data center racks

Technical Specifications