DATE: 11-07-2011
EVENT START TIME: 0820am PST
DURATION: 15 minutes, resolved at 0835am PST
SERVICES/EQUIPMENT: SIP trunks, 'hosted PBX' phones/endpoints using DNS-based registration
TYPE OF EVENT: Temporary DNS resolution failure
IMPACT OF EVENT: SIP trunks offline; 'hostedPBX' phones / endpoints offline
Event Description:
There was a brief interruption to some services this morning. Any clients using phones registered to our 'HostedPBX' service via any of our DNS hostnames, and SIP trunks registered to our gateways via DNS hostnames (such as those ending in 'telephonic.ca', or older hostnames that end in 'fuguphone.net') would have experienced their phones going offline, and the SIP trunks going offline.
The situation has been resolved, and we have contacted our domain name services provider to determine the exact cause of the issue. They have reported that they have been This is the first even brief outage with this service we have seen in our 5+ years of operation.
All our equipment remained online and available on the public Internet via raw IP addresses, so inbound calls were still reaching our gateways and voicemail was being taken.
If your SIP trunk or IP phone is still not registered, please issue a 'SIP reload' on your PBX, reboot the endpoint, and / or reboot your router to refresh the registration.
All 'CloudPBX' clients using our private VPN to register their phones did not experience the issue.
Background information on what DNS is can be found at Wikipedia: http://en.wikipedia.org/wiki/Domain_Name_System
Please contact us via support@telephonic.ca should you notice any further issues.