IR27398 - Problems with calls routed over GTT SBCs in EMEA region

Update timeline

1. investigating Jul 23, 2026, 11:49 AM UTC

   We are aware of issues that may be impacting some of your calls routed over GTT Session Border Controllers (SBCs) in the EMEA region due to a third-party outage. We are working to resolve the issue as soon as possible. We’ll provide further updates within 1 hour. Thank you for your patience and understanding. If you have any questions, please contact https://www.vonage.com/support/

2. identified Jul 23, 2026, 01:02 PM UTC

   Following an outage reported by GTT, we are monitoring the impact on some Vonage services, which may have impacted your calls in the EMEA region. We are working closely with GTT as they work to resolve the issue. We'll continue to provide further updates within 6 hours. Thank you for your patience and understanding. If you have any questions, please contact https://www.vonage.com/support/

3. monitoring Jul 23, 2026, 04:58 PM UTC

   Thank you for your patience following GTT reported outage earlier today which may have impacted your calls going through GTT services. GTT has identified the issue and applied initial mitigations, and continues to report early signs of recovery across affected services. We remain engaged with them as recovery continues. We’ll provide further updates within 24 hours and once full service is restored. If you have any questions, please contact https://www.vonage.com/support/

4. resolved Jul 23, 2026, 05:56 PM UTC

   Vonage services have been fully restored following today’s service outage reported by GTT, which began at 2026-07-23 09:44:28 UTC. Full resolution of the incident has been confirmed by GTT effective 2026-07-23 14:25 UTC. Impacted customers will receive a formal RFO. Thank you for your patience and understanding as we worked with GTT to restore services as quickly as possible. If you have any questions, please contact https://www.vonage.com/support/