Gold Member Since 2010
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Shenzhen DBL Technology Limited

VoIP Gateway, VoIP Gateways, VoIP manufacturer / supplier in China, offering 1-FXS VoIP Gateway (HT-912) (ATA), RoIP 302 Cross-Network Gateway Talkback/Radio Repeater Communication, 4 Port/Channel/SIM Card GSM Gateway GoIP4 and so on.

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Supplier Homepage Product VoIP ATAs(FXS) 1-FXS VoIP Gateway (HT-912) (ATA)

1-FXS VoIP Gateway (HT-912) (ATA)

FOB Price: US $26 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $26/ Piece
Get Latest Price
Production Capacity: 10, 000 PCS/Month
Payment Terms: T/T, Western Union, Paypal, Money Gram
Basic Info
  • Model NO.: HT-912
  • Transfer Rate: 10/100Mbps
  • Ports: ≤4
  • VoIP Protocal: H. 323&Sip
  • Trademark: DBL
  • Origin: China
  • Type: Wired
  • Firewall: Firewall
  • Application: Enterprise
  • Transportation: by Air
  • Specification: Package: 10PCS/Carton
Product Description
1. Support ITU H. 323 V4 and IETF SIP V2
2. Speech quality ensured by QoS
3. VLAN and QoS and VoIP gateway
4. NAT Transversal and Route functions

The DBL 2-FXS Port SIP/H. 323 speech quality ensured VoIP Gateway (HT-922) is designed as a compact, high performance, and low cost VoIP Analog Terminal Adapter (FXS Gateway). It offers two FXS ports to interface with traditional analog phones or PBX trunk lines for VoIP communications. It bundles with lots of features to meet the demand in various network environment. It is an ideal low cost VoIP solution for travelers, SOHO and SME users.

Key Features
Open Standard VoIP Protocols (ITU H. 323 V4 and IETF SIP V2)
Two 10/100 Ethernet for WAN / LAN connections
Peer-to-Peer IP Calls
Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
Line Echo Cancellation
VLAN and QoS support
NAT Transversal and Router functions
Voice prompts, HTTP Web, Auto Provision support for configuration and updates
Highly stable embedded Linux operating system in high performance ARM 9 Processor

Basic Features
Two RJ-11 FXS ports for traditional phone set or PBX's trunk line
LEDs for Power, Ready, Status, WAN, PC, FXS
Call Forward, Call Hold, Call Transfer
Dial Plan
Caller ID
Enhanced Features

Dynamic selection of codec
Advanced jitter buffer
Automatic traversal of NAT and firewall
VLAN / Qos
Router
Echo cancellation for Speakerphone
Comfort noise generation (CNG)
Voice activity detection (VAD)
Auto provisioning (requires auto provisioning server)
On line firmware upgrade
Multi-language support: English and Chinese
Supported Standards

ITU: H. 323 V4, H. 225, H. 235, H. 245, H. 450
RFC 1889 - RTP/RTCP
RFC 2327 - SDP
RFC 2833 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
RFC 2976 - SIP INFO Method
RFC 3261 - SIP
RFC 3264 - Offer/Answer model with SDP
RFC 3515 - SIP REFER Method
RFC 3842 - A Message Summary and Message Waiting Indicator
RFC 3489 - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)
RFC 3891 - SIP "Replaces" Header
RFC 3892 - SIP Referred-By Mechanism
Draft-ietf-sipping-CC-transfer-04 - Session Initiation Protocol Call Control - Transfer
Codec: G. 711 (A/µ Law), G. 729A/B, G. 723.1
DTMF: RFC 2833, In-band DTMF, SIP INFO
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