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Silver 1U rack-mount box with four RJ-45 ports and a USB management port

AudioCodes

AudioCodes M500-ESBC Mediant 500 VoIP E-SBC 250 sessions 4 RJ-45 1U rack

SKU CH-6V4Z-N1PBJ MPN M500-ESBC

Connects IP-PBXs to SIP trunks with up to 250 concurrent sessions in a 1U rack-mountable unit

  • Product typeVoIP Gateway
  • Scales to 250 concurrent SBC sessions
  • Connects IP-PBXs to any SIP trunking provider
  • Secures branch-office VoIP deployments
  • Fits 1U rack space at 1.7 in height
  • Gigabit ports on four RJ-45 interfaces

Mediant 500 E-SBC for Branch Offices

The AudioCodes Mediant 500 is a compact Enterprise Session Border Controller built for small enterprises and branch offices. It connects IP-PBXs and unified communications platforms to SIP trunking services. The 1U rack-mountable unit also supports desktop placement and includes a single E1/T1 interface with 30 voice channels.

Sustained Session Handling

The appliance scales to 250 concurrent SBC sessions, maintaining secure and reliable SIP-to-SIP connectivity under continuous load. It bridges legacy TDM-based PBX systems to IP networks and IP-PBXs to the PSTN without performance degradation. Gigabit Ethernet ports ensure stable throughput for distributed enterprise deployments.

250 Concurrent Session Capacity

The decisive specification is the 250 concurrent session limit, which defines the maximum simultaneous calls the unit can process. Organisations requiring higher session counts must evaluate larger platforms. Buyers needing only SIP trunk connectivity without TDM handoff should verify that the E1/T1 interface matches their environment.

How it compares

Measured against everything we stock in IP Phones & VoIP Handsets, at today’s prices. Recalculated every night.

Price $419.99
Pricier than about 84% of the 495 comparable items (median $138.99).

Specifications

Product
Brand nameAudioCodes
Product typeVoIP Gateway
Size & build
Shipping weight1.81 kg
Package size457 × 254 × 102 mm

Questions about this item

How much power does the Mediant 500 draw when handling 250 concurrent SBC sessions all day?

The Mediant 500 is a compact 1U appliance designed for continuous operation in branch-office racks, but the supplier data does not publish a power-draw figure for full-load conditions.

Which cables and network infrastructure must I already have to connect the four RJ-45 ports on this unit?

Each of the four RJ-45 ports supports 10/100/1000Base-T, so you need standard Cat5e or better Ethernet cabling and a compatible switch or router with available Gigabit ports.

Will the single E1/T1 interface with 30 voice channels work alongside my legacy TDM PBX that uses older signalling?

Yes, the Mediant 500 is built to connect legacy TDM-based PBX systems to IP networks through its single E1/T1 interface carrying up to 30 voice channels.

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