Quote Originally Posted by chevyman View Post
do you mean the busy signal on sip.voipwelcome.com & sip7.voipwelcome.com for the last week or what happen Today?
Everything should be back to normal on them. We mitigated what looked like an attack on them earlier in the week and discovered an issue with some users that were using TCP to register with instead of UDP and that was causing issues since TCP held all the packets and released them at once causing issues and delays for everyone. We disabled TCP registrations because everyone should be using UDP.

Between blocking the attack and disabling TCP registrations (which were causing a quasi-attack on their own), everything appears completely stable on our end now.

Reseller support load is now drastically lower than it has been all week with only some typical support issues that seem unrelated.

Greenlantern - We are looking at your ticket, but everything looks fine on our end. We even did a test on your accounts by registering to them and they worked fine. Brandon will get in touch with you.

Also worth noting...we've noticed on a few users that if their device is sending too much info in the headers it can cause the MTU to be too big in the headers and cause issues. We control this on our ATAs to limit the amount of info they send but if you have BYOD devices configured to send things like codecs we don't support, a name in the from header, etc it could push it over the MTU limit in the headers and cause a busy signal or call failure.