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Dear List |
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We are a tiny business running in China. In China ISP competition is not |
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very healthy, 2 major ISPs: China Telcom, China Netcom both defend their |
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own business by limiting network access to other ISP. |
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We have an office in Beijing, in Beijing there is only one ISP company |
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(monoplay business) that is China Netcom so they "choose" to use it. |
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We have an office in Xiamen, in Xiamen there is only one ISP company |
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(monoplay business) that is China Telcom, so we "choose" to use it. |
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We also have a server hosted by a hosting company, that company is very |
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smart, using some very special technology to connect both ISP. |
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Transfer data from our Xiamen Office to Beijing => 3 ~ 10 KB/s, no |
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connection can maintain 10 minutes. Transfer data from Beijing to Xiamen |
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is the same slow. |
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In Xiamen, transfer data from / to our server is 100KB/s; in Beijing |
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exactly the same. |
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We used to use skype, but quality isn't very high nor very realiable |
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because only a few super-nodes have fast access to both ISP. Besides we |
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got a few other problems too related to skype / gizmo. |
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I am thinking perhaps it's not difficult to set up some software on the |
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server that do the "routing", e.g. it serve as a call center that both |
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office login to a VOIP software and it connects to the server, the |
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server talk to both sides. This is the fastest solution and it should |
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work. That's only my imagination, I am still searching for such |
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software. |
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Both offices use OpenSuSE as desktop computer and the server runs Gentoo |
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Linux. Both offices are behind each one's NAT firewall. |
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Any suggestions on a VOIP solution for our office? |
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P.S. |
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Certainly THIS would work: set up VPN on the server and both office dial |
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into the VPN before they start to use some SIP software. This can solve |
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the problem, but I think it's over complicated. |
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Besides, I never tried VPN on Linux, only did it on Windows: on windows |
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the downside is once a host has dialed up VPN, local network connection |
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is "hidden" for it, that I can no longer access the hosts in the same |
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office that has not yet dialed in the same VPN. This is not acceptable |
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for us. |
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-- |
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Zhang Weiwu |
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Real Softservice |
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http://www.realss.com |
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+86 592 2091112 |
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-- |
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gentoo-user@g.o mailing list |
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