SC-4 SIP Proxy Server is designed as an embedded-based platform. It performs internet telephony services: such as registration, call detail record and security registration policy. The SC-4 series provide a comprehensive, powerful platform for delivering IP telephony applications based on the Session Initiation Protocol (SIP). It also builds in VoIP 4 ports Gateway.

SIP Proxy Server Key Features:

? 200 SIP endpoints scale: SC-4 series providing 200 SIP endpoints to register.
? SN like Status Display: SC-4 providing the status display on IP Phone LCD panel. It can display the status like eating idle leaving busy on call. (Optional)
? Trunk Line Setting for Off-Net Call: SC-4 series providing trunk interface for Off-Net call by ITSP. (Optional)
? Register Security Policy: SC-4 series providing MD5 authentication setting on your VoIP network.
? Top 20 lists: SC-4 series can lists top 20 calls by call duration, caller number, calling number, caller IP or callee IP address.
? Syslog: SC-4 send syslog information to Syslog server.
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VoIP Key Features:

? Voice Codec: G.711 (A-law /�g-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)
? FAX support: T.30 / T.38
? Echo Cancellation: G168-2000
? FXO Caller ID detection: DTMF and FSK
? Answer supervision: Support Reverse Battery Detection and Voice Detection
? Adjustable AC Termination Impedance: 600 / 900 OHM and complex Impedance
? Life-Line support (IP/ power failure over relay)
? Polarity Reversal: Type I and Type II
? 12K Hz and 16K Hz Metering

IP Specifications:

? Caller ID Delivery and Detection: FXS support DTMF&FSK Caller ID generation; FXO supports DTMF&FSK Caller ID detection.
? Smart VoIP call Dialing Book: VoIP call Book could provide any application VoIP call to any type destination (Domain name/IP address, PSTN or PBX) or hunting number setting.
? AC termination Impedance: 600/900 OHM and complex impedance
? Polarity Reversal Detection: Type I and Type II
? Smart-QoS Guaranteed: This bandwidth management feature provide good voice quality when user place VoIP call and access internet at the same time. The gateway will automatically start to reserve bandwidth for voice traffic when VoIP call proceeds.
? Voice channels status display: This function display each port status such as onhook, offhook, calling number callee's number, talk duration, codec.

Call Features

? Voice channels status display
? Direct Dialing Mode : peer to peer call (support IP Address Call or Domain Name Call)
? Register Call Mode : SIP Proxy Server
? Adjustable volume : - 9 db ~ 9 db
? Silence Compression
? Auto Dial for speed
? Dynamic Jitter Buffer

Configuration & Management
? Web-based Graphical User Interface
? Remote management over the IP Network
? FTP firmware upgrade
? Backup and Restore Configuration file

LED Indicator

? Power , Reset, WAN, LAN,FXS/FXO