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Stateful Inspection Firewall
Connects up to 90 IP Phones and 12 Analog lines
The Superset 420 offers twelve programmable keys which can be used as feature or line keys
000 MAC Addresses
The upgraded version of the phone is the ShoreTel 230 which provides 3 programmable keys
Adtran Atlas 550 Ethernet Switch Module 1200766L1 Condition:Refurbished Stateful Inspection FirewallAdtran Atlas 550 Ethernet Switch Module 1200766L1 Description: The Adtran Atlas 550 Ethernet switch module is designed to provide connectivity of network devices to the router of the Atlas 550. The 1200766L1 provides seven 10 100 BaseT Ethernet Interfaces for Layer 2 switching applications and one port for uplink to the Atlas 550 internal router 10 100BaseT port. The switching module supports auto MDI MDIX crossover and auto negotiation (10 100 Mbps,
