Gold Member Since 2010
Audited Supplier
Shenzhen DBL Technology Limited

Two Line Telephine, Sip Ip Phone, Low Cost Ip Phone manufacturer / supplier in China, offering IP Phone, 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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IP Phone

FOB Price: US $55.3 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $55.3/ Piece
Get Latest Price
Production Capacity: 10000PCS/Month
Payment Terms: T/T, Western Union, Paypal
Basic Info
  • Usage: Laptop, Computer, Workstation, Server, Mobile phone, Telephone
  • Support Network: GSM
  • Type: Wired, Wireless
Product Description
Key Features
Open Standard VoIP Protocols (ITU H. 323 V4 and IETF SIP V2)
All standard PBX functions
One call appearances support two simultaneous calls
Two 10/100 Ethernet circuits connect to the LAN and an additional device
3-Line LCD (Icons, Alphabets/Numbers, Numbers)
Buttons and keys for all commonly used functions
Message waiting indicator
Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
Full duplex speaker phone
VLAN and QoS support
NAT Transversal and router functions
Power over Ethernet (PoE) or AC/DC adapter
Menu, HTTP Web, Auto Provision support for configuration and updates
Highly stable embedded Linux operating system in high performance ARM 9 Processor

Basic Phone Features
Call forward
Call transfer
Call hold
Mute
Redial
Display caller ID
Display call duration
Display date and time
Access voice mail
Send DTMF tones
Message waiting indication (MWI)
100 phone book entries
30 most recent call records for dialed, incoming, and missed calls
Adjustment of LCD contrast (4 levels)
Adjustment of handset volume (6 levels)
Adjustment of speaker phone volume (6 levels)

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), GSM, 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: 0.7 kg (1.4 lb). Shipping weight (box of 10) 8 kg (17.5 lb)

Size: 160 mm (W) x 215 mm (L) x 65 mm (H) (6.25" x 8.5" x 2.5")

Power: 12 Vdc 500 mA from included AC adapter (Classification 0 under IEEE 802.3af on CN2x2p)

Safety: IEC60950

Emissions: FCC part 15A, ANSI C63.4, EN55022 class B, EN61000-3

Immunity: EN55024

Warranty: One year
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