Key Facts:

SIP+H.323
Polarity Reversal Detection
NAT Traversal
Smart-QoS Guaranteed

SC-16:

Caller ID Delivery & Detection

VoIP call Dialing Book

AC termination Impedance: 600/900OHM & complex impedance

NAT traversal

Call Hunting

Voice channels status display

Pulse Dial support

Flash Detection & Generation Program

Codec: G.711(A-law/μ-law), G.729 AB, G.723 (6.3Kbps/ 5.3Kbps)

FAX support: T.30/T.38

Echo Cancellation: G.165/G168

FXO Caller ID detection : DTMF & FSK (Optional)

FXO hang up detection/anti-seized: Tone Learning Auto/Manual Tone Learning (Optional)

Support Battery Reverse Detection & Voice Detection

FXO answer delay time: Support delay 0 8000 ms to answer

Fail safe Mechanism (FXS relay to FXO

12KHz & 16KHz Metering (Customized)

H.323 v2/v3/v4 & 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

WAN: Support PPPoE client, DHCP client, Fix IP Address, DDNS client

Smart QoS

IP TOS (IP Precedence)/DiffServ

Voice channels status display

Direct Dialing Mode: peer to peer call (support IP Address Call or Domain Name Call)

Register to SIP or H.323

Adjustable volume: - 9 db ~ 9 db

Silence Compression

Auto Dial for speed

Dynamic Jitter Buffer

Hot-Line Support

CONFIG & MANAGEMENT:

Web-based Graphical User Interface

RS232 for configuration

Remote management over IP Network

FTP firmware upgrade

Backup & Restore Configuration file

Syslog client support