SOLVED udp protocol is not working with internal call

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vuthy09

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Jun 12, 2023
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upd protocol is not working on LAN network for internal calling? and where to unblock the udp protocol for the internal calling on LAN network?
 
DigitalDaz said:
UDP should absolutely be working unless you have made changes to stop it working.
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it is only working with external public ip address, but internal with LAN network is not. And if I changed from udp to tcp for LAN network is ok
 
What does this command show?

If netstat is not installed, use: apt install net-tools

netstat -antup | grep freeswitch
 
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So freeswitch is clearly listening there on UDP on the internal profile:

udp 0 0 172.26.9.223:5060

Are you saying the phones register OK with UDP?

On another note, why are you not using TCP anyway?
 
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DigitalDaz said:
So freeswitch is clearly listening there on UDP on the internal profile:

udp 0 0 172.26.9.223:5060

Are you saying the phones register OK with UDP?

On another note, why are you not using TCP anyway?
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Register is OK with UDP, But can not make an internal calling, and for TCP is OK for internal calling.

UDP is faster, low latency and Video calling for VOIP.

and I want to make the system for Video calling in the future, that's why I need UDP.

or UDP can be blocked by Fail2ban ????? and how to check fail2ban?
 
It is very possible that your UDP packets are being fragmented because they are too big and that is why the calls are not working.

TCP will not suffer from this problem.

Using TCP for SIP is not a problem, all the media streams, eg audio/video still use UDP anyway.
 
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DigitalDaz said:
It is very possible that your UDP packets are being fragmented because they are too big and that is why the calls are not working.

TCP will not suffer from this problem.

Using TCP for SIP is not a problem, all the media streams, eg audio/video still use UDP anyway.
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so no any solution by the way??
 
DigitalDaz said:
If it is UDP frag, then very much so a solution and that is TCP.
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Hi Sir, now I have solved my udp problem. udp protocol is now working on my LAN networking, due to my ISP router block outgoing udp protocol. my ISP router is fritz box 7490 and it is more security. I have check filter and firewall on the router to make udp working. Cheers!!
 
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