[mfretwell]

System
VOIP: Vonage (Canada); stunserver.org
PBX: 3CX v 6
Firewall: SonicWall 2040 Pro
Phones: Aastra 55i

Problem
We are having problems with stunserver timeout, and our line not registering.
I suspect that it is a firewall issue.

Question
Can anyone tell me which services need to be enabled and which ports need to be opened on the SonicWall firewall to effectively allow VOIP communication?

A deceptively simple question

[amygoda]

Hello
You can find full details in the manual
http://www.3cx.com/manual/3CXPhoneSyste ... tem15.html
But You have to know Your voip provider settings

[francesco]

firewall test of 3cx is ok?

[mfretwell]

You betcha.

Firewall_html_21415dbc.jpg (73.84 KiB) Viewed 873 times

[mfretwell]

Lines and extensions registered now. Had to change VOIP setting on SonicWALL to "Permit non-SIP packets on signaling port" (see image below).

BUT we still only get one-way audio
AND we are still getting STUN server timeouts

SonicWall VOIP.JPG (65.48 KiB) Viewed 945 times

[ess]

I got my stun server timeouts when I had two network interfaces installed on the machine (one lan, one hamachi). At this time, 3cx is most stable when you only have one network interface.

[mfretwell]

Have only one NIC with no other networking devices installed.

[worksighted]

Which direction are you getting the audio in?

[mfretwell]

We get audio out but not in.

[francesco]

you can try to specify port 5060 on sonicwall (not 5061)