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Shenzhen DBL Technology Limited

Radio Repeater, Cross-Network Voip Gateway, 3 Ptt Port Voip Gateway manufacturer / supplier in China, offering DBL 3 Ptt Port VoIP Cross-Network Gateway RoIP-302, 4 Port/Channel/SIM Card GSM Gateway GoIP4, 32 Ports GSM Gateway GoIP32 Support Bulk SMS VoIP Device and so on.

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Supplier Homepage Product RoIP Cross-Network Gateway DBL 3 Ptt Port VoIP Cross-Network Gateway RoIP-302

DBL 3 Ptt Port VoIP Cross-Network Gateway RoIP-302

FOB Price: US $603.08 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $603.08/ Piece
Get Latest Price
Production Capacity: 10000PCS/Month
Transport Package: Packing Box Dimension :35.5*21.5*7
Payment Terms: T/T, Western Union, Paypal
Basic Info
  • Model NO.: RoIP-302
  • Trademark: DBL
  • Type: Gateway
  • Origin: Shenzhen
Product Description
Overview
The fundamental of RoIP(Radio over IP)technology is to convert the audio and PTT signals in a radio terminal into IP packets and then transmit the data via the IP networks. The challenge in this technology is to insure that the audio is transmitted in real time and the PPT control signal is transmitted immediately and reliably. The radio range is general limited by the restricted transmitting power, the antenna sensitivity, and other environmental factors.

Key Features
Open Standard VoIP Protocols (IETF SIP V2)
Two 10/100 Ethernet for WAN / LAN connections
Supply dynamic DNS service
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
Support IP voice stream to via a recording server
Highly stable embedded Linux operating system in high performance ARM 9 Processor

Basic Features

Support a PTT port
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

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: 0.35 kg (4.2 lb) (Including AC/DC Adapter)
Size: 170 mm (W) X 140 mm (L) X 65 mm (H) ( " X " X ")
Power: 12 VDC 2A (AC/DC adapter included). Classification 0 under IEEE 802.3af on CN2X4
Warranty: One year
Hardware Characteristics Parameters Remarks
Model RoIP-302  
Processer ARM9 133MHz  
DSP VP-101-1 196MHz  
RAM 32W  
Flash 4W  
Power supply DC 12V/2A + - 10%  
Frequency Default: 900/1800MHz  
Choice: 850/1900MHz
Power consumption Max  32W  
LED Operating and circuit light  
Network Card 10/100BASE-T ×2  
Weight 0.86KG  
Operating temperature 0-45 centigrade  
Working humidity 40%--90% non condensation  
Color Grey  
PTT port 3 3
GSM Channel 1  
Billing support  
Warranty 1 year  
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