AudioCodes Mediant 800C E-SBC Gateway – 2 E1/T1 Spans Plus 4 FXS Analog Ports, SIP Session Border Controller (M800C-V-2ET4S)

The AudioCodes Mediant 800C (M800C-V-2ET4S) is a hybrid Enterprise Session Border Controller and VoIP gateway in a 1U chassis. It combines SBC functionality with two E1/T1 digital spans (up to 48 T1 or 60 E1 simultaneous channels) and four FXS analog ports — enabling organizations to simultaneously bridge TDM PSTN circuits, support legacy analog endpoints, and secure SIP trunking from a single platform. It simplifies the architecture for enterprise sites in the middle of a phased TDM-to-SIP migration.

The Telecom Spot Take

The Mediant 800C is a practical answer to one of the most common enterprise telephony challenges: running TDM and SIP infrastructure side-by-side during a migration. Instead of deploying separate hardware for SBC, TDM gateway, and analog gateway functions, the M800C-V-2ET4S handles all three in a single 1U unit. The two E1/T1 spans cover up to 48 T1 or 60 E1 simultaneous digital calls from the PSTN or a legacy PBX. The four FXS ports handle analog exceptions — fax machines, elevator phones, or analog emergency lines that aren't yet migrated. The SBC layer then secures and normalizes SIP traffic on the IP side. For mid-size enterprise campuses managing a phased transition to Microsoft Teams, Zoom, or a hosted UCaaS platform, this is a cost-effective, space-efficient consolidation.

Key Features

• 2 E1/T1 digital spans — up to 48 T1 channels or 60 E1 channels for PRI/TDM PSTN or legacy PBX trunk connectivity
• 4 FXS analog ports — supports analog phones, fax machines, and emergency lines during SIP migration
• Integrated SBC functionality — SIP security, normalization, topology hiding, and media transcoding
• Consolidated hybrid gateway — replaces separate SBC, TDM gateway, and analog gateway hardware
• 1U rack-mount form factor — compact deployment in enterprise IDF closets and data center racks
• Microsoft Teams Direct Routing support — SBC capability enables direct PSTN connectivity to Teams Phone

Technical Specifications