Voip Failed to Establish Error and Fast Busy

Update timeline

1. investigating Sep 01, 2026, 10:57 PM UTC

   We are currently investigating reports that some clients are experiencing issues establishing outbound calls, including Failed to Establish messages and fast busy signals. Our teams are actively investigating the issue and working with our VoIP partners to identify the cause and restore normal calling functionality as quickly as possible. We apologize for the disruption and appreciate your patience. We will provide additional updates as more information becomes available.

2. monitoring Sep 01, 2026, 11:11 PM UTC

   Outbound calling functionality has been restored, and clients are now able to successfully place outbound calls. Our teams are continuing to monitor the environment closely to ensure calling remains stable. Thank you for your patience while we worked to address this issue. We will provide a final update once monitoring is complete.

3. resolved Sep 01, 2026, 11:30 PM UTC

   The issue affecting outbound calling has been fully resolved. Clients are able to successfully place outbound calls, and functionality has remained stable throughout our monitoring period. Thank you for your patience and understanding while our teams worked to resolve this issue.