I'm trying to get E20s to register using VCS-E as a proxy - note I'm not doing provisioning on the E20s.
I've got authentication disabled and everything set to "treat as authenticated" for the time being, just for testing.
The E20 can register fine directly to VCS-C, but when I try to register via VCS-E the E20 shows it's SIP URI in the top right as though it had registetred but immidiately freezes for about 3 minutes and eventually reboots. We have Jabber using the exact same traversal zone and subzone registering fine.
I've got our firewall open to and from the E20 for the time being just to rule that out also.
Any ideas?