NAT/ALG check - Port 5080

[ChrisR]

Hi,

I discovered in the activity log these error:

08/23/2019 10:23:58 AM - [CM503003]: Call(C:284): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 127.0.0.1:5483

08/23/2019 10:23:58 AM - NAT/ALG check:L:284.4[Extn:108] RESPONSE 200 on 'INVITE' - some of SIP/SDP headers contain inconsistent information or modified by intermediate hop SIP proxy detected: Record-Route:<sip:[email protected]:5080;user=proxy;uri=clnt.1-a94c2bf3-f45c-4ecf-866a-c9ec29bc15c7>

08/23/2019 10:23:57 AM - [CM503003]: Call(C:284): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Cancelled/INVITE from 192.168.181.111:5060

08/23/2019 10:23:57 AM - NAT/ALG check:L:285.1[Extn:108] REQUEST 'INVITE' - some of SIP/SDP headers may contain inconsistent information or modified by intermediate hop SIP proxy detected: Via:SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bK-524287-2---Pj070101dc-1b39-4894-98b8-f188e091561c;rport=5080 Via:SIP/2.0/UDP [::ffff:178.197.225.148]:39484;branch=z9hG4bK-524287-1---tunneltid;rport;tnlid=clnt.1-a94c2bf3-f45c-4ecf-866a-c9ec29bc15c7 Via:SIP/2.0/TCP 127.0.0.1:50195;rport;branch=z9hG4bKPj070101dc-1b39-4894-98b8-f188e091561c;alias

This happen when to call comes from or is answer with the mobile phone application (tested android + Iphone).

The call is working perfeclty but i constantly have these error.

I tried to open the port in the firewall but it dosen't change anything.

In any case i never see port 5080 in the 3CX installation Instruction.

3CX is updated to the last public available version (15.5.15502.6) and the default port are in use.

In the 3CX parameters page, i see that 5080 is used for "TNL_CLIENT_SIPPORT " but don't know what it is.

What can i do?

 

[AWS2P]

SIP ALG is enabled on your Router/firewall ?

but you could start here
https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[cobaltit]

As you said, the call is working. There's no error. It simple says the call was cancelled. If you have multiple devices (desk phone and soft phone, or multiple soft phones) registered to a single extension this is expected.

And v15.5 Update 6 is not the latest available version. v16 Update 2 is.

 

[JohnS_3CX]

In any case i never see port 5080 in the 3CX installation Instruction.

3CX is updated to the last public available version (15.5.15502.6) and the default port are in use.

In the 3CX parameters page, i see that 5080 is used for "TNL_CLIENT_SIPPORT " but don't know what it is.

Port 5080 is the internal port of the 3CX tunnel protocol. If you don't have any issues there is no cause for alarm, especially if your firewall checker passes. If it says ALG Detected then you need to disable this feature from your firewall

 

[ChrisR]

Hi,
Thanks for your answer i updated to v16 and i didn't get the error message anymore and didn't have anymore the problem with one way audio.
Seems there is a bug in 15.5 as i didn't change anything in the config.

 

[JohnS_3CX]

Hi ChrisR

I'm a bit confused now, you said originally and I quote

The call is working perfeclty but i constantly have these error.

but now you say

.. i updated to v16 and i didn't get the error message anymore and didn't have anymore the problem with one way audio

So was there one way audio or not? Also the message you saw was not an error, it is informational logging related to the bridge. If you don't use bridges this is completely unrelated

 

[ChrisR]

Hi,

After posting the message on this forum some user told me that some times they have one way audio when using the App on their smartphone.

So i decided to upgrade.

In any case i never use bridge.

 

[JohnS_3CX]

Ok no problem, in case you do come across any issues you can start a new thread then.

Glad to hear all is ok