Specification :

By Modular hardware design SB800/ S1600/ S2400 series makes any combination of the telephone interface. The Soundwin SB800/ S1600/ S2400 Series VoIP Gateway is fully SIP and / H.323 standard compliant high density gateway that provides a total solution for integrating voice-data network and PSTN. By modular installation, this revolutionary compact voice over IP ( VoIP) gateway could be easily configured as 8/ 16/ 24 channels high density FXS/ FXO VoIP Gateway which provides voice connectivity over the IP network and to the Public Switched Telephone Network ( PSTN) .

VoIP Key Features
• Modular design to accommodate various types of telephony interfaces.
• Both support SIP and H.323 protocols: SIP Registration and Digest Authentication; H.323 Gatekeeper Registration. SIP Single Number / Account for multiple ports.
• Caller ID Delivery: FXS support DTMF Caller ID generation.
• 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
• Answer Supervision for Polarity Reversal Detection and Voice detection
• NAT traversal: This feature allow gateway to operate behind any NAT/ Firewall device. Need not to change any configuration of NAT/ Firewall like setting virtual server.
• Smart-QoS Guaranteed: This bandwidth management feature provide good voice quality when
• user place a VoIP call and access internet at the same time. The gateway will automatically start to reserve bandwidth for voice traffic when VoIP call proceeds.
• Call Hunting Facility: This function helps gateway to use the lines effectively. This facility automatically transfers your incoming call to a free line. Subscribers need not indicate numerous numbers of each port of gateway.
• Voice channels status display: This function display each port status like as onhook, offhook, calling number callee’ s number, talk duration, codec.
• Flash Detection and Generation Program: FXO support Flash Generation and FXS support Flash Detection.
• FXO answer Mode: FXO provides Ringing Answer, Connection Answer and Non Answer for configuration.
• FXO anti-seized mechanism : FXO provides busy tone auto-learning and manually configuration busy tone learning..

Telephony Specification
• Voice Codec: G.711( A-law / ¼ -law) , G.729 AB, G.723 ( 6.3 Kbps / 5.3Kbps)
• FAX support : T.30 / T.38
• Echo Cancellation: G.165/ G168
• FXS Tone Table Configuration: Support tone frequency and cadence configuration
• FXO hang up detection / anti-seized : Busy Tone Learning Automatically / Manual Busy Tone Learning.
• Answer supervision: Support Battery Reverse Detection and Voice Detection.
• FXO answer delay time: Support delay 0 – 8000 ms to answer.
• Adjustable AC Termination Impedance : 600 / 900 OHM and complex Impedance
• Failsafe Mechanism ( FXS relay to FXO) :
- Power failed bypass support
- Internet failed bypass ( Optional)
- Registered failed bypass ( Optional)
- Unconditional bypass ( Optional)
• 12K Hz and 16K Hz Pulse Metering ( Customized)
• FXS Battery Revere Generation
• Support MWI ( Message Waiting Indicator) by SIP Notify ( Optional) .

IP Specfications
• H.323 v2/ v3/ v4 and SIP ( RFC 3261) , SDP ( RFC 2327) , Symmetric RTP, STUN ( RFC3489) , ENUM ( RFC 2916) , RTP Payload for DTMF Digits ( RFC2833) , Outbound Proxy Support.
• LAN : Support Virtual Server, DHCP Server
• WAN: Support PPPoE client, DHCP client, Fix IP Address, DDNS client
• Network Address Translation: Providing build-in NAT router function.
• Smart QoS: Guarantee the voice bandwidth
• IP TOS ( IP Precedence) / DiffServ

Call Features
• Voice channels status display
• Direct Dialing Mode : peer to peer call ( support IP Address Call or Domain Name Call)
• Register Call Mode : register to SIP Proxy Server or H.323 Gatekeeper
• Adjustable volume : - 9 db ~ 9 db
• Silence Compression / VAD
• Auto Dial for speed
• Dynamic Jitter Buffer
• Hot-Line and Warm-Line Support

Configuration & Management
• Web-based Graphical User Interface
• RS232 for configuration
• Remote management over the IP Network
• FTP firmware upgrade
• Backup and Restore Configuration file
• Front LCD Panel for System Status and Management
• Syslog client support
• Auto-Configuration

General Specification
• Standard 50 pin RJ-21 Telco connectors
• AC power : AC100V-240V, DC12V/ 1.5A, 50/ 60 Hz
• Temperature: 0° C ~ 40° C ( Operation)
• Humidity: up to 90% non-condensing
• Emission: FCC Part 15 Class B, CE Mark
• RoHS Compliant
• Dimension : 440 x 250 x 45 mm

Available Model
• S2400 ( 1WAN, 1LAN, 24FXS)
• S2424 ( 1WAN, 1LAN, 24FXO)
• S2412 ( 1WAN, 1LAN, 12FXS, 12FXO)