请教关于voip router / voice terminal的问题

[gooddriver]

要保证通话质量的话，原则上voip voice terminal需要挂在电脑或者局域网router前面，也就是modem接它，它再接原来的局域网设备。

请问能把它挂在局域网router后面吗？我这样试了下电话不工作，应该怎么改一下设置？

 

[胖蹄阿克]

要做port forwarding

 

[gooddriver]

how, thanks

 

[胖蹄阿克]

首先你要问你的VOIP service provider,他们的服务要用到什么port
然后你去Google用以下词组search
router的牌子,router的型号,port forwarding VOIP

一定会找到答案

 

[mds]

不用port forwarding也可以， 把voice terminal的NAT Mapping enable。

 

[jzhang77]

Or enable the ALG on the router

 

[sip]

最简单的办法，把你的router的ＤＭＺ地址，设置成你voip terminal的地址，然后enable你的ＤＭＺ，就可以了。缺点是，你的router后面只能带一个voip terminal.

 

[gooddriver]

多谢各位高人

 

[HappyNewYear]

Please find out the problem with the following steps

1. Your ATA (Analog Telephone Adapter) can be installed behind your home router;

2. Please try to connect your ATA directly to your Modem. If the issue is resolved, you need to focus on your router;

3. Some routers in market are SIP aware device that could cause problem. Could you login the Web GUI of your ATA? If yes, save the Web page and send it to me. I could find out which parameter is incorrect;

4. If you could not login the Web GUI, please use ethereal or wireshark with a Hub (not switch) to capture all packets in/out your ATA. The problem you have could be caused by signaling or media issue. If you could get the UDP trace, please send it to me, and I will be able to find out the cause;

5. Please do not enable SIP ALG on your router if your router has that parameter. Enabling SIP ALG could cause SIP SDP parse error;

6. You cannot use port forwarding on your router to resolve this issue since media streams (RTP streams) use dynamic port;

If your ATA comes from a service provider, you could call them to ask if your router is support.

Let me know if you need further info.



Support from Bell Canada