MV-370:VoIP GSM Gateway call termination (VoIP to GSM ) and origination (GSM to VoIP) Support Asterisk. Dual band:900/1800mhz Tri band:900/1800/1900MHZ Quad band:900/1800/1900/850MHZ DMT:E1/T1 PRI GSM Channel Bank (5U Rack) 1.E1/T1 PRI*1,GSM*31, 2.PRI to GSM,GSM to PRI (two ways). 3.Provides LCR function according to prefix to choose the route. 4.It can assign the calling time of per sim card. 5.Option SCE-900/SCBox to expand sim cards per gsm channel. All system can expand to 992/124 pieces SIM cards. 6.Dual band:900/1800mhz Tri band:900/1800/1900MHZ Quad band:900/1800/1900/850MHZ SkyTrunk ST-1004: Skype gateway connect 4 port skype to PBX and Skype,FXS,FXO,GSM conversion. SkyTrunk ST-2004: Skype gateway connect 4 port skype to PBX and Skype,FXS conversion. SkyTrunk ST-3004: Skype gateway connect 4 port skype to PBX and Skype,FXS,FXO conversion. SkyServer: Skype gateway (Build in PC) connect 4 port skype to PBX and Skype,FXS conversion. more detail [URL]http://www.portech.com.tw[/URL] Or contact me via e-mail [email]rebecca@portech.com.tw[/email] best regards, Rebecca Liu PORTech Communications Inc. 150 Shiang Shung N.Rd,Taichung,Taiwan Tel:+886-4-23058000ext 103 [URL]http://www.portech.com.tw[/URL]