IP Trunk Unit Model：G1E-ITU Product Overview The G1E-ITU is a Trunk Interface Unit designed to be installed in the G1E+ or G1E+M Converged IP-PBX Series. It enables networking capability between systems over a SIP Based VoIP infrastructure, allowing direct station to station dialing, enhanced call routing and avoidance of costly toll charges. The G1E- ITU also can be used as a replacement for traditional telephone lines, offering additional features and significant cost savings on monthly telephone bills. Specifications Model VoIP Channel Applicable System VoIP Channel System Type Min. Max. Cabinet Configuration G1E-ITU4 4 G1E+, G1E+M G1E-ITU8 8 G1E+, G1E+M G1E+ 4 or 8 8 One cabinet G1E-ITU16 16 G1E+M only G1E+M (1) 4, 8 or 16 16 One cabinet G1E+M (2) 4, 8 or 16 32 Two cabinets G1E+M (3) 4, 8 or 16 48 Three cabinets G1E+M (4) 4, 8 or 16 64 Four cabinets Note: One G1E-ITU per cabinet for both G1E+ & G1E+M G1E+ supports ITU4 or ITU8 only G1E+M supports ITU4, ITU8 or ITU16 VoIP • Codec: G.711A, G.711u, G.723, G.729 • Audio quality: VAD ( Voice Activity Detection ) CNG ( Comfort Noise Generation ) PLC ( Packet Loss Concealment ) AJB ( Adaptive Jitter Buffer ) • Echo cancellation: G.168 • Gain Control: Input / Output: +/- 14db • DTMF signal: In-Band, SIP-Info, RFC 2833 • DTMF payload: 96/101 • Communications protocol: SIP RFC-3261 • Supports the features of an Outbound Proxy Server. • Supports IP address or Domain name setup. • RTP/RTCP ( Real-Time Transport Control Protocol ) RFC 3550, RFC 3551, RFC 2198 • Network Management Features Web browsing setting: HTTP Password-protected Supports Static, DHCP, and PPPoE IP address assignments Software update: TFTP Supports backup and restoration of the config file. Event Log File: TFTP • QoS (Quality of Service): RTP(TOS/Diffserv), UDP(TOS/Diffserv) • Phone book: 20 sets of telephone number to related IP addresses (for peer-to-peer connections). ＊ Specifications are subject to change without prior notice. Features ITU • Each VoIP channel can be configured to connect to other VoIP devices in peer-to-peer mode or via a SIP server or service provider. • Each VoIP channel can be assigned to use a different SIP server or service provider. There are 4 sets of server details on each ITU card configurable for primary and secondary values of both Proxy server and SIP server. • Incoming Trunk Hunt group capability • Caller ID message: Telephone Number and Name • Supports peer-to-peer VoIP communication under NAT environment. • 20 sets of Telephone Number to IP Address Conversions for peer-to-peer connections. • ITUs can be integrated together by registering with one another to provide station to station dialing on inter-system connections. • Auto-detect and auto-adjust fax signal for the T.38 relay standard. ▇ ▇ • • • • G1E+ / G1E+M System Features DID (Direct Inward Dialing) MSN (Multi-Subscriber Number) LCR (Least Cost Routing) All existing standard outside line features in G1E+ and G1E+M are included, such as Incoming Call, Outgoing Call, Day & Night Service, DISA (Direct Inward System Access), Toll Control, Call Accounting (with SMDR), CO Line Ringing, Automatic Transfer, Line Group Assignment, etc.