On Fri, 23 Mar 2007 10:22:26 +0800, Zhang Weiwu wrote > Dear List > > I am thinking perhaps it's not difficult to set up some software on the > server that do the "routing", e.g. it serve as a call center that > both office login to a VOIP software and it connects to the server, the > server talk to both sides. This is the fastest solution and it should > work. That's only my imagination, I am still searching for such > software. > > Both offices use OpenSuSE as desktop computer and the server runs Gentoo > Linux. Both offices are behind each one's NAT firewall. > ------------------------------------
Setup a VPN in both sides. Netgear has a small box that can serve as Wireless acces point and VPN goodies (we use Netgear FWG 114P in front of router). Setting up IKE and VPN on this tiny stuf is easy. Make sure you can ping the internal IP of the other side. Do it for both sites. For VOIP implementation in linux you can use asterisk. Install asterisk in the server for PABX server. Digium has line of card products that you should choose as a FXO port in addition to that server. Connect the port of Digium to IP telephone, Grandstream for example has special IP phone that you can choose. For one VOIP/SIP connection it needs around 20-30 kbps. You should aware of this one. See asterisk in www.asterisk.org regards, edwin -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
