AudioCodes Mediant 800 Lifeline Kit – 25 FXS Analog Fallback Cables for PSTN Backup & Emergency Connectivity (M800-LIFELINE-KIT)

The AudioCodes M800-LIFELINE-KIT is an analog lifeline accessory kit for the Mediant 800 SBC gateway. It includes 25 FXS analog fallback cables that enable the Mediant 800's lifeline feature — allowing FXS ports to bypass the VoIP gateway and connect directly to PSTN analog lines when SIP connectivity is lost. This capability is critical for organizations that must maintain emergency calling or essential telephony functionality even during a network or SIP trunk outage.

The Telecom Spot Take

The lifeline feature is what separates a resilient VoIP deployment from a fragile one. When SIP trunks or IP connectivity fail, the Mediant 800's FXS lifeline bypass allows analog phones connected to the gateway to fall back to direct PSTN access automatically — without user intervention. This is particularly important for emergency lines, front desk phones, or safety-critical communications that cannot afford to go dark during a network failure. The M800-LIFELINE-KIT provides the 25 cables needed to wire up the lifeline bypass connections between FXS ports and POTS analog jacks. If regulatory compliance, life safety, or business continuity requires call survivability during IP outages, this kit is an essential part of the Mediant 800 deployment.

Key Features

• 25 FXS lifeline cables — connects Mediant 800 FXS ports to PSTN analog lines for fallback routing
• Automatic PSTN failover — FXS ports bypass SIP gateway and connect directly to POTS during IP outages
• Emergency line survivability — maintains 911 and essential calling capability during network or SIP trunk failures
• Regulatory compliance support — helps meet call survivability requirements for life safety communications
• OEM AudioCodes kit — cables matched to the Mediant 800 FXS port connector specifications

Technical Specifications