Advantages

U320 E1/T1 Trunking Gateway .U320 is a cost-effective trunk gateway product. U320 locates on the interface of PSTN and IP network, providing signal transform between ISDN PRI signal and H.323, SIP signal, as well as media transfer between the PSTN and IP network. U320 supports 1/2/4 E1/T1 Digital Trunk at PSTN side with ISDN PRI signal, covering the functions of call processing, control and maintenance.

Benefits

>Complete billing software which can provide billing function without any third-party software >Can be deployed in both enterprise and carrier system which has standards-compliant ability with outstanding system reliability >Traditional Telecom Carriers, Tier 2 Carriers, Virtual Operator, ITSP, Enterprise/Corporation, Volp System Vender.

Hardware

Modularity and Capacity 1, 2, 4 E1/T1 spans using RJ-48 connectors Ethernet 10/100 Base-Tx Ethernet ports Power Supply Single universal -48V DC or 90-260V AC Dimension 1U high19-inch wide rack mount Console                                 10/100 Base-Tx Ethernet port via RJ-45                                                              Humidity connector and 1 RS-232 serial port

Software

Control Protocol H.323(V4), SIP(RFC326 ISDN Protocol ETSI EURO ISDN, ANSI NI2, and other variants (DMS, 5ESS) Voice Codes G.711, G.723, G.726, G.728 and G.729a Echo Cancellation G.165 and G.168 2000, with 32, 64, 128, 256 tail length QOS Features Dynamic Jitter Cancellation, VAD, Silence Suppression, CNG. Detection and  Generation         IP network side or PSTN side detection and generation, RFC 2833 compliant DTMF relay Fax over IP T.38 compliant (real time fax)   T.30 (Group 3 fax automatic bypass) IP transport VoIP (RTP/RTCP) per IETF RFC 3550 and 3551, PPPoE Billing Billing software provided together with hardware Route Assign Supports flexible assigning different SIP servers or GKs to different E1/T1 in U320 Management Telent, FTP, HTTP

Others

Safety and EMC Standards             FCC 68 Part, TBR-4, TBR-13 UL60950, FCC 15 part Class B, CE Mark (EN55022 Class B, EN60950,             EN55024, EN300386) Environmental Specifications            NEBS Class 3: GR-63-Core, GR-1089-Core, Class 1,Class 3, ETS300019