The NetVanta 1355 PWR has the following features:

• Voice over IP, SIP-based Multi-Service Access Gateway
• 24-port Power over Ethernet (PoE) (802.3af) injector (15.4 watts per port)
• Provides 370 watts of power over spare pair for PoE
• Dual Combination 10/100/1000BaseT Ethernet port/SFP module slots for high-speed uplink or stacking requirements
• Feature-rich ADTRAN Operating System (AOS)
• Two integrated station (FXS) ports
• Two integrated trunk (FXO) ports
• RS-232 console port (DCE) and 10/100BaseT Ethernet port for management
• Two modular option slots compatible with existing NIM or VIM
• 56k/64k, FT1, FT1+DSX-1, ADSL, dual T1, and serial NIMs available
• Quad station (FXS), quad trunk (FXO), dual station/dual trunk, and T1/PRI voice interface modules (VIM) available
• Supports up to 10 FXS stations with appropriate VIM installed
• Supports up to 10 FXO trunk ports with appropriate VIM installed
• Router support for up to 3 DS1 interfaces of Frame Relay, MLFR, PPP, MLPPP, ADSL, or Ethernet delivery
• QoS/NAT/DHCP client, server, and relay
• Supports SIP trunks
• Supports local station to station calls
• Automatic failover to FXO ports to PSTN for survivability
• Up to 10 channels of G.711 (m-law)
• Up to 10 channels on G.729
• Up to 10 channels of DTMF detection/generation
• 64 ms echo cancellation
• Supports configurable adaptive and static jitter buffers
     Dynamic jitter buffer:
        Nominal (10ms steps from 10ms to 240ms)
        Maximum (10ms steps from 40ms to 320ms)
     Static jitter buffer:
        Nominal (10ms steps from 10ms to 240ms) Three integrated fans for cooling with auto-speed control
        Maximum (10ms steps from 40ms to 320ms)
• Integrated compact flash for IP phone configurations and firmware
• Provides a 3.5mm jack for paging output (configured as extension or SPRE code)
• IEEE 802.1Q (VLAN)
• IEEE 802.1D (MAC Bridging/Spanning tree)
• IEEE 802.1p (Class of service priority)
• IEEE 802.1s (Multiple spanning tree or spanning tree per VLAN)
• Port trunking/link aggregation
• Port mirroring
• Differentiated services support (TOS field in IP header)
• Supports 3-way conferencing for SIP phones, supports caller ID, message waiting, and stutter dial tone
• Fax and analog modem compatible (V.90)
• Recognizable Command Line Interface (CLI) and user-friendly, Web-based Graphical User Interface (GUI)
• LEDs for system status information
• Telnet, HTTP, SSL, SSH, craft/console port, or SNMP management options
• 1U, 19-inch rackmount metal enclosure
• 1.7-inch H x 17.2-inch W x 13-inch D
• Auto-ranging power (100 to 250 VAC, 50/60 Hz)