Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 9000
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available
Russian / Portuguese / Spanish Speaker

Fxs Gateway, Sip Fxs Gateway, Analog Telephone Adapter manufacturer / supplier in China, offering DBL One Port VoIP FXS (ATA) Gateway HT-912T, DBL SIM Bank32 Remote Controller SIM Server, Remote 32 SIM Cards SIM Bank SMB32 and so on.

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Supplier Homepage Products VoIP ATAs(FXS) DBL One Port VoIP FXS (ATA) Gateway HT-912T

DBL One Port VoIP FXS (ATA) Gateway HT-912T

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Min. Order: 1 Piece
Production Capacity: 10000PCS/Month
Transport Package: 14*17*6.5cm
Payment Terms: T/T, Western Union, Paypal
Type: Gateway
Size: 70mm (W) X 101mm (L) X 25mm (H)
Trademark: DBL
Origin: Guangdong

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Basic Info

Model NO.: HT-912T

Product Description

The HT-912T is designed as a compact, high performance, and low cost VoIP Analog Terminal Adapter (FXS Gateway). It comes with one FXS port to interface with a traditional analog phone set or a PBX trunk line 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 and SOHO 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
Support T. 38
Line Echo Cancellation
PPTP VPN, 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

One RJ-11 FXS port 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
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 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

Physical and Environmental

Operating temperature: 10° C to 40° C (50° F to 104° F)
Storage temperature: 0° C to 50° C (32° F to 122° F)
Weight: 0.10 kg (4.2 lb) (Including AC/DC Adapter)

Size: 70mm (W) X 101mm (L) X 25mm (H) ( " X " X ")

Power: 12 VDC 500 mA (AC/DC adapter included). Classification 0 under IEEE 802.3af on CN2X4
Warranty: One year
Hardware Characteristics Parameters Remarks
Model HT-912T  
Processer ARM9 133MHz  
DSP VP-101-1 196MHz  
RAM 16W  
Flash 4W  
Power supply DC 12V/500mA + - 10%  
Power consumption Max  4W  
LED Operating and circuit light  
Network Card 10/100BASE-T ×2  
Weight 0.35KG  
Operating temperature 0-45 Centigrade  
Working humidity 40%--90% non condensation  
Color Black  
RJ11 port 1 24V feed, 48V ringing
Warranty 1 year  

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