Guangdong, China
Business Type:
Trading Company
Number of Employees:
28
Year of Establishment:
1996-04-12
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

VoIP Gateway, VoIP Gateways, VoIP manufacturer / supplier in China, offering 1-FXS VoIP Gateway (HT-912) (ATA), DBL SIM Bank32 Remote Controller SIM Server, Remote 32 SIM Cards SIM Bank SMB32 and so on.

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

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $26/ Piece
Port: Shenzhen, China
Production Capacity: 10, 000 PCS/Month
Payment Terms: T/T, Western Union, Paypal, Money Gram
Type: Wired
Transfer Rate: 10/100Mbps
Firewall: Firewall
Ports: ≤4
Application: Enterprise
VoIP Protocal: H. 323&Sip

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Basic Info

Model NO.: HT-912
Transportation: by Air
Trademark: DBL
Specification: Package: 10PCS/Carton
Origin: China

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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