Was this VoIP setup worked prior to the firmware upgrade? Could you please check the SonicWall logs for any error messages? Also, I would suggest you to perform a packet capture on the SonicWall based on phone's IP address(es) or port numbers.
Have you tried to disable sip alg? My supplier of the sip line pointed this out. I had the same issue and uploaded the previous firmware version to het it working and have not tried this solution yet. https://www.sonicwall.com/support/knowledge-base/how-to-disable-sip-alg/210615065648977/
ChristianP
Newbie ✭
Answers
Hi @CHRISTIANP,
Thank you for visiting SonicWall Community.
Was this VoIP setup worked prior to the firmware upgrade? Could you please check the SonicWall logs for any error messages? Also, I would suggest you to perform a packet capture on the SonicWall based on phone's IP address(es) or port numbers.
Regards
Saravanan V
Technical Support Advisor - Premier Services
Professional Services
@ChristianP - following
I had the same issue and uploaded the previous firmware version to het it working and have not tried this solution yet. https://www.sonicwall.com/support/knowledge-base/how-to-disable-sip-alg/210615065648977/
Was it an upgrade?
Hi @ChristianP
Try disabling sip transformations, enable consistent NAT, and disable UDP flood protection.
We have the same issue after upgrading to 6-5-4-8-89n yesterday night on one of our customers NSA2650 Clusters.
The VoIP provider confirmed that sip registration stopped working the second we installed the update.
When we do a WAN failover, sip registration works but the customer cant hear the other side.
Gonna open a case for this too.
@ChristianP and @EF999
It has been a month - could you please update status on either support's conclusion or remediation for this issue?
Thanks!
Larry
I dongrade to 6.5.4.7, I exclude management from WAN and waiting for a fix in a newer firmware.
Tnx