SIP US Outage History

SIP US is up right now

Pingoru has recorded 24 incidents for SIP US: 10 in the last 12 months and 5 in the last 90 days.

Source: status.sip.us

24incidents recorded
10last 12 months
5last 90 days
5 hourstypical duration

Incidents, newest first

Critical October 28, 2026 Inbound Calling Degradation Under Investigation 4h 19m Inbound Voice

Started Oct 28, 2026, 12:46 PM UTC· resolved Oct 28, 2026, 05:06 PM UTC

  1. investigating Oct 28, 2026, 12:46 PM UTC

    We are currently investigating a known issue affecting inbound calls to some phone numbers. Our team is actively working to identify the cause and implement a resolution as quickly as possible.

  2. identified Oct 28, 2026, 01:36 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Oct 28, 2026, 02:11 PM UTC

    We have identified and addressed the issue that was causing some inbound calls to fail. Our team is continuing to monitor traffic to ensure services remain stable.

  4. resolved Oct 28, 2026, 05:06 PM UTC

    This incident has been resolved.

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Critical October 21, 2026 SIP.US Security Advisory: PHP2SHELL Vulnerability 4h 59m Management Portal

Started Oct 21, 2026, 01:01 PM UTC· resolved Oct 21, 2026, 06:01 PM UTC

  1. monitoring Oct 21, 2026, 01:01 PM UTC

    We are actively responding to PHP2SHELL, a security vulnerability affecting widely used web software. Our Engineering and Security teams are closely monitoring our systems and taking appropriate measures to address and mitigate any potential risk. At this time, we do not expect inbound or outbound calling traffic to be affected, and normal call processing should continue without interruption. The security and integrity of our systems and customer information remain our highest priority. If we identify a threat requiring additional protective measures, certain systems or services may be temporarily restricted or taken offline, potentially with limited advance notice. We understand how important reliable voice communications are to your business. Our teams will continue to closely monitor the situation and will provide additional updates if there are any changes that could impact SIP.US services.

  2. resolved Oct 21, 2026, 06:01 PM UTC

    The PHP2SHELL security patch has been successfully applied, and both the SIP.US customer portal is back online and fully accessible.

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Notice September 16, 2026 Customer Security Alert: Phishing emails being sent that appear to originate from [email protected]. – Management Portal

Started Sep 16, 2026, 09:10 PM UTC· resolved Sep 16, 2026, 09:10 PM UTC

  1. resolved Sep 16, 2026, 09:10 PM UTC

    Customer Security Alert: We have identified phishing emails being sent that appear to originate from [email protected]. Please be cautious with unexpected emails, links, attachments, and requests for information. If you are unsure whether a message is legitimate, contact our Support team directly before taking any action.

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Major September 3, 2026 Outbound Faxing 3h 7m Fax Service

Started Sep 03, 2026, 06:14 PM UTC· resolved Sep 03, 2026, 09:21 PM UTC

  1. investigating Sep 03, 2026, 06:14 PM UTC

    We are currently investigating failing outbound faxes.

  2. monitoring Sep 03, 2026, 08:01 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved Sep 03, 2026, 09:21 PM UTC

    Faxing should now be fully operational

Read the full incident report →

Minor September 2, 2026 GW4 and GW5 degraded performance 2h 16m Inbound Voice, Outbound Voice

Started Sep 02, 2026, 02:04 PM UTC· resolved Sep 02, 2026, 04:21 PM UTC

  1. investigating Sep 02, 2026, 02:04 PM UTC

    We are currently investigating degraded performance on GW4 and GW5, however, we are continuing to see calls complete.

  2. identified Sep 02, 2026, 02:37 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Sep 02, 2026, 03:20 PM UTC

    A fix has been implemented and we are monitoring the results.

  4. resolved Sep 02, 2026, 04:21 PM UTC

    This incident has been resolved.

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Critical April 24, 2026 Fax to Email Service 3h 50m Fax Service

Started Apr 24, 2026, 08:11 PM UTC· resolved Apr 25, 2026, 12:01 AM UTC

  1. investigating Apr 24, 2026, 08:11 PM UTC

    We are currently investigating an issue with the fax-to-email service

  2. investigating Apr 25, 2026, 12:01 AM UTC

    We are continuing to investigate this issue.

  3. resolved Apr 25, 2026, 12:01 AM UTC

    We have identified and resolved the issue and have conducted multiple tests confirming that the Fax‑to‑Email service is fully operational and restored.

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Major April 24, 2026 Fax-to-Email 4h 47m Fax Service

Started Apr 24, 2026, 02:12 PM UTC· resolved Apr 24, 2026, 06:59 PM UTC

  1. investigating Apr 24, 2026, 02:12 PM UTC

    We are currently investigating an issue with the fax-to-email service.

  2. monitoring Apr 24, 2026, 05:05 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved Apr 24, 2026, 06:59 PM UTC

    This incident has been resolved.

Read the full incident report →

Major March 3, 2026 Calling Issues Impacting Audio and Call Completion 2h 20m Inbound Voice, Outbound Voice

Started Mar 03, 2026, 03:00 PM UTC· resolved Mar 03, 2026, 05:21 PM UTC

  1. investigating Mar 03, 2026, 03:00 PM UTC

    We are actively aware of an increase in customer reports related to inbound and outbound call failures, including audio issues and call completion failures. Our teams are actively working to investigate and restore expected calling behavior.

  2. monitoring Mar 03, 2026, 03:26 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved Mar 03, 2026, 05:21 PM UTC

    This issue has been fully resolved

Read the full incident report →

Minor February 25, 2026 Inbound Fax Transmission Issues 16h 55m Fax Service

Started Feb 25, 2026, 10:34 PM UTC· resolved Feb 26, 2026, 03:30 PM UTC

  1. investigating Feb 25, 2026, 10:34 PM UTC

    We are aware that multiple customers are reporting issues with incoming faxes failing to be delivered. We are actively investigating the matter and will provide an update as more information becomes available.

  2. identified Feb 25, 2026, 11:05 PM UTC

    We have identified that inbound fax transmissions are successfully reaching the fax service; however, the Fax ATAs are not processing the fax transmissions correctly. We are actively investigating the matter and will provide an update as more information becomes available.

  3. monitoring Feb 26, 2026, 01:23 AM UTC

    Faxing service partners have identified a root cause and reverted changes that had contributed to delivery issues. Faxing services have resumed and are being monitored.

  4. resolved Feb 26, 2026, 03:30 PM UTC

    Service has been fully restored, and we have validated that inbound faxes and notifications are once again being handled and delivered correctly.

Read the full incident report →

Minor January 21, 2026 Intermittent Outbound Issues 3h 10m Outbound Voice

Started Jan 21, 2026, 04:24 PM UTC· resolved Jan 21, 2026, 07:35 PM UTC

  1. investigating Jan 21, 2026, 04:24 PM UTC

    We are investigating an issue that is causing intermittent outbound call failures.

  2. monitoring Jan 21, 2026, 04:40 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved Jan 21, 2026, 07:35 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor January 15, 2025 Intermittent Inbound Call Failures Impacting AT&T Customers in Southeast Florida 6h 9m Inbound Voice

Started Jan 15, 2025, 04:12 PM UTC· resolved Jan 15, 2025, 10:22 PM UTC

  1. investigating Jan 15, 2025, 04:12 PM UTC

    We are actively collaborating with our peer networks to resolve the intermittent inbound call failures impacting AT&T customers, particularly in Southeast Florida, including the Miami and Melbourne areas. This issue appears to be localized to this region. We will continue to monitor the situation closely and provide updates as new information becomes available.

  2. investigating Jan 15, 2025, 05:15 PM UTC

    We are continuing to work with our peer networks to address this issue.

  3. investigating Jan 15, 2025, 06:30 PM UTC

    We are continuing to work with our peer networks to address this issue.

  4. investigating Jan 15, 2025, 07:33 PM UTC

    We are continuing to work with our peer networks to address this issue.

  5. identified Jan 15, 2025, 07:48 PM UTC

    Our peer networks have identified the issue and are working on a fix.

  6. monitoring Jan 15, 2025, 09:05 PM UTC

    A fix has been implemented by the upstream carrier, and we are currently monitoring the results.

  7. resolved Jan 15, 2025, 10:22 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor January 14, 2025 Intermittant Inbound Call Failures AT&T 4h 46m Inbound Voice

Started Jan 14, 2025, 03:02 PM UTC· resolved Jan 14, 2025, 07:49 PM UTC

  1. investigating Jan 14, 2025, 03:02 PM UTC

    We are actively working with our peer networks to address the intermittent inbound call failures affecting AT&T customers, specifically in Southeast Florida, including the Miami and Melbourne areas. This issue appears to be localized to that region. We will continue to monitor the situation and provide updates as we receive them.

  2. investigating Jan 14, 2025, 04:01 PM UTC

    We are continuing to work with our peer networks to address this issue.

  3. identified Jan 14, 2025, 05:05 PM UTC

    Our peer networks have identified the issue and are working on a fix.

  4. monitoring Jan 14, 2025, 06:16 PM UTC

    A fix has been implemented and we are monitoring the results.

  5. resolved Jan 14, 2025, 07:49 PM UTC

    This incident has been resolved.

Read the full incident report →