Thanks All
I have those settings already enabled
It is rejecting the SIP INVITE packet not even getting to Voice at all
The VoIP provider shows a registered with a good Qualify time 55 ms but
not calls come in due to the Invite packet being rejected
Why and why would it suddenly do this nothing was changed it blink I'm
not going to work now
Thanks all
Barry
Dr. Michael J. Chudobiak wrote:
Barry Fawthrop wrote:
Hi all
Anyone using a sonicwall firewall ?
I have been and then suddenly it drops UDP packets because SIP is no
longer on port 5060 but some random assigned port ?
Why ?
Which Sonicwall model? Some (like the TZ170) have special VOIP
settings, like "Enable consistent NAT" and "Enable SIP
Transformations". Check those; they work well with SIP.
If you don't have one of these newer models, please see
http://www.voip-info.org/wiki-IAX, in the "NAT Issues" section. It
deals with IAX2, but the issues are same for SIP UDP. The Sonicwall
UDP-connection-memory timeout may be VERY short - 30 seconds by
default on some! It is adjustable in some firmware versions.
I use the TZ170, but with IAX2 rather than SIP.
- Mike
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