[WXC/VFX] Random incoming VFX and trixbox problem

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rcgcreations

8 posts

Wannabe Geek

#40703 2-Sep-2009 12:08

Hi All,

I have been having on going problems with VFX and my trixbox. My incoming calls do not always get through.

My trixbox says it's registered and sometimes to call we get to my server.

I have tried the following
- Moved away from the ADSL XNet fusion connection to a TelstraClear cable connection.
- Turned off all voicemail and diverts at WorldxChange.

My installation has been working relatively well for many years without modification. It really has been of late that this has been happening.

Has anyone experience this too? Of course I emailed XNet but I got the "We do not support Asterisk" But they did say they can see the registeration at their end.

Any help would be great.

Thanks in advance

Craig

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#252524 2-Sep-2009 12:13

How often does this happen? What happens when your box isn't connected?

There have been some random issues with Asterisk failing to reregister correctly with VFX.

Doing a "sip show registry" from the command line will show the current status of your connections. "sip reload" should fix the issue when it does happen.

rcgcreations

8 posts

Wannabe Geek

#252530 2-Sep-2009 12:27

Hi,

Thank you for replying so quick!

It seems to happen through out the day randomly. Usually when it's not connected it just goes to Voicemail.

Yep the sip show registry command shows it's registered ok.

It's weird because one minute it will be working the next it won't be.

My Cable connection is up all the time.

I am using NAT on a pfsense box as my firewall. Do I need to have pinholes through to my Trixbox?

Recently have I changed the registerattempt to 0 and registertimeout = 60 but that does not seem to make much different.

I am thinking tonight I might install Trixbox 2.8 and try that. Currently I'm using Trixbox 2.6.

Craig

sbiddle

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#252534 2-Sep-2009 12:40

Having port 5060 open is recommended but shouldn't be essential.

If you can perform a sip show registry and it shows as connected but inbound calls are failing then it's not the issue I described above. That's something that's happened to a few people on here maybe once every couple of months.

rcgcreations

8 posts

Wannabe Geek

#252537 2-Sep-2009 12:47

It's certainly weird. Is there extra logging options I can turn on in Trixbox, so I can see if it's trying to connect?

I will give the Trixbox 2.8 install a go and see if that helps. I will also put the pinholes through for port 5060. I assume they will have to be TCP and UDP?

Btw, Thank you for spending the time to reply to me.

rcgcreations

8 posts

Wannabe Geek

#252538 2-Sep-2009 12:49

Oh also, I have call notify to email on and I just got about 5 emails when I tried to call my number . It's like Worldxchange is trying to connect and then retrying.

sbiddle

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#252548 2-Sep-2009 13:02

If sip show registry shows as registered then it's possible that your firewall is blocking inbound traffic.

All SIP traffic using Asterisk is UDP only so only port UDP/5060 needs to be opened.

Once you have done that I'd be interested so know what happens. What configuration settings are you using? Have you added anything extra to your conf files such as externip= and if so is it correct?

rcgcreations

8 posts

Wannabe Geek

#252587 2-Sep-2009 14:44

I have added a NAT rule for port 5060 UDP to pinhole to my Trixbox and the last few phone calls seem to work.

Here is some of my config

[VFX2]
username=*my username*
type=peer
secret=*secret*
nat=yes
insecure=invite,port
host=as.wxcnz.net
fromuser=37411237
fromdomain=as.wxcnz.net
dtmfmode=rfc2833
disallow=all
context=from-trunk
canreinvite=no
allow=ulaw
allow=alaw

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rcgcreations

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Wannabe Geek

#252927 3-Sep-2009 15:30

Things seem to be better today with the incoming NAT rule in place. I haven't changed to 2.8 that will be a Friday mission I'm guessing.

Have a look at this screenshot. This is why I moved to TelstraClear Cable for my VOIP. It is usually 2400 down.

sbiddle

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#252934 3-Sep-2009 16:01

There is no real need to move away from 2.6 unless you want to move to Asterisk 1.6

The problem would occur regardless of what version you use since it was more than likely your firewall causing the issue.

Just one other small thing, you can now use pan.wxnz.net as the VFX server, you also don't need to add this to your hosts file.

rcgcreations

8 posts

Wannabe Geek

#252995 3-Sep-2009 19:40

Cool cheers..

I will when I get a chance put a log on incoming UDP port 5060 connections. I looked out my old firewall and it didn't have such rule and it worked for years until recently.

Maybe WorldxChange do a lookup UDP port 5060 on incoming call now to see if the asterisk server is there or something.

Anyway thank you for your advice.

sbiddle

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#253000 3-Sep-2009 19:52

rcgcreations: Cool cheers..

I will when I get a chance put a log on incoming UDP port 5060 connections. I looked out my old firewall and it didn't have such rule and it worked for years until recently.

Maybe WorldxChange do a lookup UDP port 5060 on incoming call now to see if the asterisk server is there or something.

Anyway thank you for your advice.

Were you using pfsence before?

Different firewalls can do slightly different things. Opening port 5060 is recommended but isn't always necessary.

rcgcreations

8 posts

Wannabe Geek

#253009 3-Sep-2009 20:02

No I was using a Linksys WAG54GP2 Adsl router with DMZ back to a Debian box (2.4 kernel) with shorewall. But the trixbox was on the WAN side(ie using the linksys as its gateway) so it had NAT directly through the Linksys router.

richms

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#253616 6-Sep-2009 20:14

I had no end of problems with incoming calls even with a portfoward. Putting my asterisk box as the DMZ has sorted it out mostly, but I think there were still occasions when the ports are used by other outgoing UDP which is why I got no audio some times.

I was going to try limiting the RTP port range on asterisk and fowarding that specofically to the asterisk machine but I consolodated and made it into the nat machine as well so its still a DMZ and no audio is very very rare now.

UDP is a prick thru nat IMO.

Richard rich.ms

zimbonz

96 posts

Master Geek

#253695 7-Sep-2009 10:57

I have had the same problem, with three different sites recently. I have Trix 2.6, working on a DMZ, and at least once a week on all three sites, I have to reload Asterisk to re - register the trunk.
Incoming calls will get dealt with by the WxC voicemail, instead of the forwarding to the TRix. Outgoing calls work fine, so everyone thinks it is working fine... :(
Any other ideas?

sbiddle

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#253703 7-Sep-2009 11:16

Problems like this happening on a continual basis are obviously something to do with your setup. What type of router are you using?

The changes I posted the other day that are also in my blog will get around the issue you are having by forcing a SIP reload but aren't a proper fix for whatever problems you are having.

Lack of audio is typically an issue with poor quality routers or incorrectly forwarded ports.. I've never had an issue with any audio loss with VFX on any device. Just make sure your rtp.conf is modified and you're opening these ports up.

Are these trixbox installs on three different sites zimbonz? PM me if you need any help looking at the setup.

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