| | WAN port:
 1x Ethernet IEEE 802.3, 10Base-T (RJ45) with PPP-over-Ethernet (PPPoE)-communication protocolLAN port:
 1x Ethernet IEEE 802.3, 10/100Base-TX (RJ45), Autosensing, Full duplex operationLAN access via USB:
Network protocols:
 PPP over Ethernet (can be de-activated), PPTP, ARP, IP, ICMP, TCP/IP, DHCP, DNSFilter options:
 Source and destination filter for networks/hosts, protocols and ports; Port forwarding; pre-configured filters can also be downloadedSecurity/Firewall function:
 PAP and CHAP, authentication mechanisms in PPP; configuration protected by password; Recording of previous connection information; IP masqueradingIP masquerading (NAT):
 IP address using an IP address; static/dynamic allocation of IP address at the WAN port; Masking of TCP, UDP, ICMP, FTPManagement:
 Configuration and status display via Windows programs; configuration via USB, Ethernet and ISDN (CAPI, Remote CAPI)Log functions:
 Logging of connection and online time, number of connection setups and data volume transferred, SYSLOGDNS Proxy:
 Self-learning DNS cache for enhancing performance and reduction of data volumes to be transferred
 2 digitale exchange line channels (1 external S0; Point-to-mulitpoint/Point-to-point ISDN access1 analog exchange line connection (opt. module)2 digital internal channels (1 internal S0; for connecting elmeg system telephones or standard ISDN terminals)System telephony with elmeg system telephonesMax. 6 a/b portsCLIP and charge pulse on all portsIntegrated IP router for Internet access via xDSL or ISDN with:- 1 xDSL/WAN-Ethernet inter-face (for external xDSL modem)
 - 1 LAN Interface,10/100 Mbit-Fast-Ethernet
 - 1 LAN Interface USB
 2 a/b module for providing six portsPOTS module for connecting the T444 to an analog ex-change line access4 DSP module for the connection of SIP provider
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 | | Routing performance: > 2 Mbit/S with xDSLUse of fixed or dynamic IP addresses (PPPoE) for xDSLIntegrated Packet Filter Firewall, with chargable filter sets, NATAutomatic Fallback xDSL to ISDN programmableTAPI and CAPI in the LANLEDs for Power, ISDN, LAN, WAN
 elmeg WIN Tools *elmeg Professional Configu-ratorelmeg Control Centerelmeg Telephone Directory Managerelmeg Charge Managerelmeg Web Interface for LCR Professionalelmeg TAPI Managerelmeg Download-ManagerWeb based Configurator Java Configurator in the PABX system for simple configurationFilter Wizard for easy configuration of firewallsSystem configuration and firmware updates via USB, S0 internally and remotely, or LAN ports (TCP/IP)
 *) supplied on CD-ROM
 Integrated xDSL/ ISDN router with Packet Filter Firewall and NATLCR feature including gateway supportConnection of a door terminal adapter to the analog portsAutomatic completion of calls (CCBS, CCNR) in the network and internallyTeam functionsBusy-on-busyTeam calls to an MSN extension number (team number)Deflecting calls without answering (CD, Call deflection)Charge credit for each subscriber (pocket money)CLIP (number display) supported by all analog portsCall rerouting programmable from a remote location (Follow me)Memory for 500 charge data records, overflow indication by LEDCentralized switching of day/night modesDay/night call mode controlled by date/time (incl. day of the week control)Alphanumeric telephone directory with 500 entries
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