RHADMIN
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Interesting Issue...VOIP Dropping in Exactly 5 minutes
Hi,
We just got 3 Primus TalkBroadband boxes. They work by just plugging into our LAN and then you plug in an analogue phone into the box to talk. Just like that and you can use it to call people (and receive calls).
They seem to communicate over port 2427 over the Internet. Primus has a VOIP server that registers our WAN IP associated with the Primus TalkBroadband boxes. Everything seems ducky on these phones until you talk for 5 minutes; the call gets dropped!
We tested this extensively and no matter what the calls will ALWAYS drop after 5 minutes of conversation. I talked to Primus support and they think that our firewall (Sonicwall Pro 3060) is dropping the connection due to some "safety" feature. I opened the firewall port to 2427 but it's no use...still drops the calls after 5 minutes. Does anyone have any ideas about this? Much appreciated!
We just got 3 Primus TalkBroadband boxes. They work by just plugging into our LAN and then you plug in an analogue phone into the box to talk. Just like that and you can use it to call people (and receive calls).
They seem to communicate over port 2427 over the Internet. Primus has a VOIP server that registers our WAN IP associated with the Primus TalkBroadband boxes. Everything seems ducky on these phones until you talk for 5 minutes; the call gets dropped!
We tested this extensively and no matter what the calls will ALWAYS drop after 5 minutes of conversation. I talked to Primus support and they think that our firewall (Sonicwall Pro 3060) is dropping the connection due to some "safety" feature. I opened the firewall port to 2427 but it's no use...still drops the calls after 5 minutes. Does anyone have any ideas about this? Much appreciated!
ASKER
Hi dkwiebe,
The default UDP timeout is set for 30 seconds. I tried to adjust it higher but the Sonicwall is warning me saying it's not recommended. Anyways I adjusted it to 60 seconds just to test it out.
Also adjusted TCP timeout from 15 minutes to 30 minutes. So far calls are still dropped after reaching the magical time of 5 minutes. :(
Should I crank up the UDP timeout higher than 60 seconds? Do you know if there's any negative consequences?
The default UDP timeout is set for 30 seconds. I tried to adjust it higher but the Sonicwall is warning me saying it's not recommended. Anyways I adjusted it to 60 seconds just to test it out.
Also adjusted TCP timeout from 15 minutes to 30 minutes. So far calls are still dropped after reaching the magical time of 5 minutes. :(
Should I crank up the UDP timeout higher than 60 seconds? Do you know if there's any negative consequences?
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ASKER
Found the issue;
Under our Advanced VPN option there's something called "VPN User Authenticaiton Settings".
We added in all the TCP/UDP ports that are used for the VOIP.
It seems to be working now! Keep in mind that the NAT Traversal is quite important to have enabled as well.
Thanks everyone for your help.
Under our Advanced VPN option there's something called "VPN User Authenticaiton Settings".
We added in all the TCP/UDP ports that are used for the VOIP.
It seems to be working now! Keep in mind that the NAT Traversal is quite important to have enabled as well.
Thanks everyone for your help.
Thanks, enjoy your longer calls!
1. Firewall - > UDP
Try adjusting the default UDP timeout to a higher number.
2. Firewall - > TCP Settings
Try adjusting the default TCP connection timeout.