GoIP GSM Gateway is the GSM network and the VoIP network connecting seamlessly new Productss. Mobile phone SIM cards will be installed in GoIP, users of GSM phones can be registered to VoIP Softswitch system. GoIP users can be achieved through the GSM network on the car alight. GoIP built-in SIP and H.323, configuration flexibility. SIP can be thoroughly used when electricity came display numbers. GoIP is PBX vendors, system integrators and provider of choice for both GSM Products.
http://www.hybertone.com/en/Products_Gateway_goip.html

Our other products:
  1) VoIP gateways
        ATA: 1/2/4/8 FXS with PSTN
        ATO: 2/4 FXO
  2) Terminal phone
         EP-8201
         VP-102H(new)
  3) Relay Router
         RP-104
         
If any model meets your interest, please let me have your specific enquiry, then I will quote to you without delay.

Sharon Xiang
HyberTone Technology Co.,Ltd.----www.hybertone.com/en
Futian District; Shenzhen,China
Marketing&Sales Department
     1) MSN:xiangrong_msn@hotmail.com
     2) E-mail:sharon@hybertone.com
     3) Skype: VoIP-HyberTone
     4) Mobile:86-755-13510142940
     5) Tel :    86-755-88290301 ext:17
     6) Fax:    86-755-88290302