Single Kamailio Server - No TCP

This incident has been resolved.

We would like to inform you that several clients have reported successful phone registrations after we implemented a TCP traffic block to and from this specific SBC. This leads us to believe that the issue is currently fully mitigated. In light of this, we are intentionally leaving this SBC in a degraded state to facilitate thorough investigation by our engineering teams as required. Our intention is to conduct a server reboot tomorrow evening. We will keep this incident active until that time to facilitate full transparency into the issue.

Presently, a concern has arisen wherein one out of the three Kamailio servers located in EWR is encountering difficulty in processing SIP registrations. It's important to note that this issue is not expected to affect our services, as phones that are appropriately configured will automatically attempt registration through alternate SBCs and/or zones. If you're currently facing challenges with phone registrations, we encourage you to reach out to our support team. This way, we can assist you in enhancing your phone's configuration to proactively avoid similar issues moving forward.