One of our upstream carriers is reporting problems with one of their call servers - this may be affecting incoming calls to 07 numbers.
From the carrier: Our voice engineering team is investigating this issue and we will keep you updated throughout this process.
From carrier (12:13) Please note that the issue below is still under investigation and treated with high priority. We will let you know as soon as we have any updates.
From the carrier (13:11) The situation has improved with a reduction in failed/problematic calls due to packet loss/delays, but the service is not yet fully restored.
From the carrier (16:30) Our vendor continues to investigate the root cause, we will provide further updates as they become available.
From the carrier: We have been informed by our vendor that the issue has now been resolved. We will continue to monitor the situation closely. We apologise for the inconvenience caused and thank you for your continued patience.
Update from carrier (13:50): Unfortunately this issue is still ongoing and has been escalated again with our SBC vendor's ISP. Our Voice Engineering team have performed changes to mitigate the issue with positive results in our statistics until we get a permanent fix.
Resolved (Update from carrier on 8th January 2pm) We've been informed by our Vendor Engineering team and their ISP Infrastructure team that the issue has been fixed. Should any performance issues be detected, we will provide a prompt update and prioritise the investigation accordingly.