Audiocodes Mediant 500Lwith 4 BRI Voice Interfaces and 1000Bas

Legacy ISDN phone lines and modern IP networks rarely speak the same language, leaving businesses with costly rip-and-replace choices when migrating to VoIP. The AudioCodes Mediant 500L bridges that gap, packing four BRI voice interfaces and dual Gigabit Ethernet ports into a compact session border controller that connects traditional PBX equipment to SIP trunks and cloud UC platforms.

Who is it for

Small branch offices, retail locations, and enterprises with existing BRI lines that need a secure, reliable gateway to SIP-based voice services. It suits IT teams looking for a low-power, fanless device that can sit on a desk or in a rack without adding noise or heat.

Main features

• 4 x BRI S/T ports for direct ISDN connectivity, preserving investment in legacy telephony.
• Up to 50 concurrent SBC sessions and 30 transcoded calls (G.711 to G.729) for flexible call routing.
• Comprehensive voice codec support: G.711, G.729, G.723.1, G.722, Opus, iLBC, AMR-NB/WB.
• Advanced security: SRTP encryption, TLS, SIP firewall, DoS/DDoS protection, and NAT traversal.
• Dual 10/100/1000Base-T Ethernet ports for network redundancy or separation of voice and data.
• Echo cancellation (G.168-2004, 128 ms tail) and fax support (T.38 relay, G.711 pass-through).
• Management via web GUI, CLI, SNMP, and syslog for easy integration into existing monitoring.

Specifications

• Product type: Session Border Controller / Media Gateway
• Voice interfaces: 4 x BRI S/T
• Ethernet ports: 2 x 10/100/1000Base-T
• Signaling protocols: SIP, H.323
• Power supply: Internal AC 100-240V
• Form factor: Desktop, optional 1U rackmount kit
• Operating temperature: 0°C to 40°C (32°F to 104°F)
• Humidity: 5% to 90% non-condensing
• Compliance: CE, FCC, UL, RoHS

Tips

Pair the Mediant 500L with an AudioCodes IP phone deployment for end-to-end voice quality. For high-availability setups, consider deploying two units in active-standby mode. Use the built-in SIP firewall to protect against toll fraud and unauthorized access.