Iristel, a major canadian national competitive local exchange carriers providers used by a very large number of VoIP and business services across Canada had two major outages today... still ongoing according to their status page:
https://status.iristel.com/
As an extension this is also affecting Microsoft's Canadian PSTN connectivity used for their O365/teams calling plans and dialin conferencing, here's the latest from their health:
November 15, 2021 6:22 PM
Title: Users aren’t receiving some inbound PSTN calls intermittently via any connection method in Microsoft Teams User Impact: Users aren’t receiving some inbound Public Switched Telephone Network (PSTN) calls intermittently via Microsoft Teams. More info: Users initiating PSTN calls to recipients served by the partner carrier service in Canada are also intermittently affected, as well as 1-to-1 calling, group calls, and voice application service.
Callers attempting to reach affected users or meetings via PSTN will intermittently receive a fast busy signal.
Users can still the use the Call Me feature to join affected meetings by PSTN by navigating to the meeting in Microsoft Teams and selecting the "Phone audio" option, then entering their phone number and selecting "Call Me."
Current status: We've made configuration changes to the affected phone numbers, and monitoring suggests that impact has been reduced. We're continuing to investigate the affected environment to determine strategies to further reduce or eliminate the remaining impact. Scope of impact: Any user receiving PSTN calls from a specific partner carrier service in Canada are intermittently impacted. |
So who knows... it does seem quite coincidental with the multiple major floods, highway washouts going on in BC that it seems possible it could have broken some major national connectivity lines....
Edit: ah seems I suspected wrong ... here's a bit more information I see from by another provider:
[239] Issue affecting incoming calls for CLEC Iristel
We have identified a problem affecting our inbound calls and are currently awaiting details from CLEC Iristel.
Update: 455 - 2021-11-15 19:44:04
We are informed that Iristel is the victim of a high-profile DDoS attack. While they have yet to respond with more details or update their network status page, we have had confirmation from their larger customers.
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So DDoS related.... these atacks have been rolling across various large VoIP providers over the last month or so, voip.ms, bandwidth.com, Telnyx.... I guess Iristel is the latest...
