Additional Information | Seamless voice and data integration over T1 or packet-based architectures; ATM and nextgeneration packet support; Integral IP router for data support and Internet access; With DSX-1 for PBX connectivity; Rugged metal case; Optional battery backup; Multiprotocol over ATM; QoS Support: VBR-rt (voice), UBR (data); Echo cancellation, 8ms echo tail; Idle channel suppression; Copper Mountain CE fragmentation support; FRF.5 and FRF.8 support (V.35); Modes: FXS Loop Start, Ground Start |