Gold Member Since 2010
Audited Supplier
Shenzhen DBL Technology Limited

VoIP Phone Intercom, Intercom VoIP Router, SIP Intercom manufacturer / supplier in China, offering VoIP Intercom/RoIP with GSM Module RoIP302, Radio Repeater/VoIP RoIP 102, DBL Cross-Network Gateway (RoIP-302) and so on.

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Supplier Homepage Product RoIP Cross-Network Gateway VoIP Intercom/RoIP with GSM Module RoIP302

VoIP Intercom/RoIP with GSM Module RoIP302

FOB Price: US $442 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $442/ Piece
Get Latest Price
Production Capacity: 10000psc/Month
Payment Terms: T/T, Western Union, Paypal
Basic Info
  • Type: Radio Signal Modulation
  • Condition: New
  • Function: Signal Transmitting Device, Signal Transmission Equipment, Signal Monitoring Equipment
Product Description
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.
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
Two RJ-11 FXS port for traditional phone set or PBX's trunk line
Support three 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: 1.2 kg (4.2 lb) (Including AC/DC Adapter)
Size: 215 mm (W) x 355 mm (L) x 70 mm (H) ( " x " x ")
Power: 12 Vdc 2A (AC/DC adapter included). Classification 0 under IEEE 802.3af on CN2x4
Safety:
Emissions:
Immunity:
Other Approval:
Warranty: One year
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