I'm having sip registration issues when using pbxes.org as my proxy. The weird thing is that it is happening from an ATA behind Comcast. The other ATA behind Bellsouth is working just fine (knock on wood).
The ATA behind Comcast will keep stable if instead I use 67.231.245.210 as my proxy.
Anyone knows if pbxes.org is experiencing any issues? I'm currently testing pbxes.com as my proxy to see if it stays connected.