ChinaRoby is a business voip provider, we are supplying with Asterisk cards including TDM400P and ISDN pri E1/T1 PCI cards.

Founded in 2000,Zhengzhou Yuneng Communication Co.,ltd(YUXIN) is a professional high-tech electronic enterprise specialized in the manufacturing of products of VOIP products, network surveilliet equipments, and etc. we was awarded “high tech enterprise ” by our Zhengzhou City Government in 2005! Now,IP Camera,Waterproof IR zoom network camera are our first-rank products1

W&M Telecommunication Windows gsm/wifi phone,wifi mobile phone, wifi phone support voip sip+gps Model Q28 SPC:
Basic features
Vowlan phone:support SIP IEEE 802.11b/g
Codec:G711a/u-law, G.729a/b,G.723,G.729,G.726
Phone book:Name card management
Message service:SMS,EMS,MMS
E-MAIL transceiving:support
Input method:Hand-written,English,Chinese
Game:Bui

W&M telecommunication Android gsm wifi phone,wifi mobile phone,wifi voip phone support voip sip +gps Model vivi-02 spc:
u OS：Linux 2.6.25, Android 1.5 software platform
u CPU：Marvell Xscale 31x + NXP 52099（624M CPU）
u RF Band：EDGE, GSM 850/900/1800/1900Mhz
u LCD：3.2â

Windows 3g phone,3g wifi phone,3g mobile phone support voip sip+gps+wcdma+hsdpa+umts2100
●RF Band: High worldwide compatible telecommunication Protocol (3.6G: HSDPA, UMTS 2100, GSM 850/900/1800/1900)
●CPU:Marvell PXA270, 520MHz
●Modem：Qualcomm
●LCD:2.8” Touch screen LCD, smart touch
●Camera: 3mega auto-focus camera
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W&M Telecommunication Andriod 3g phone,WCDMA phone,3g mobile phone,3g phone with wifi Model VIVI-01
OS:Linux 2.6.25 Core, Android 1.5 software platform
CPU:Marvell Xscale 31x + Qualcomm 6085
RF Band:CDMA EVDO,800/1900M
Dimension:108 *50 *2.15 mm
LCD:3.2' WVGA,320*480,touch screen, support hand-written input
Storage:ROM 2Gb / R

W&M Telecommunication Windows gsm wifi phone,wifi mobile phone, wifi sip phone support voip sip Model WM650
RF Band GSM/GPRS/EDGE 850/900/1800/1900MHz
CPU intel920T PXA312 640MHz
OS Windows Mobile® 6.1 Professional
ROM ROM: 256 MB
RAM: 128 MB
LCD 2.8” TFT-LCD Touch Screen, QVGA
Vowlan phone Suport SIP IEEE 802.11b/g, Codec: G711a/u-law, G.729

Ultrative provides the top-quality products with excellent service and solution. We have established two product lines and R&D department. Our IP Phones and ATAs have been widely sold out in all over the world, such as USA, UK, Italy, Germany, French, Switzerland, Poland, Czech Republic, South Korea, Malaysia, Nepal, Vietnam, Australia, New Zealand, Ireland...