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        SMS Delivery Delays and DLRs When Sending to Zain Network in Sudan

        Incident Report for Twilio

        Resolved

        We are no longer experiencing SMS and delivery report delays when sending to Zain network in Sudan. This incident has been resolved.
        Posted May 01, 2023 - 03:40 PDT

        Update

        We continue to observe recovery in SMS and delivery report delays when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted May 01, 2023 - 01:32 PDT

        Monitoring

        We are observing recovery in SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 30, 2023 - 23:26 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Apr 30, 2023 - 03:09 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 16 hours or as soon as more information becomes available.
        Posted Apr 29, 2023 - 11:11 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.
        Posted Apr 29, 2023 - 02:17 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 22:20 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 20:25 PDT

        Investigating

        We are experiencing delays in receiving message delivery reports when sending to Zain network in Sudan again. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.
        Posted Apr 28, 2023 - 19:29 PDT

        Update

        We are still observing recovery in SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 17:30 PDT

        Update

        We are observing recovery in SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 15:30 PDT

        Update

        We are still observing recovery in SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 13:39 PDT

        Monitoring

        We are observing recovery in SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 28, 2023 - 11:43 PDT

        Update

        We continue to experience SMS delivery delays and delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 16 hours or as soon as more information becomes available.
        Posted Apr 27, 2023 - 19:41 PDT

        Update

        We are continuing our investigation and have discovered we are expiring SMS delivery delays and DLR when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.
        Posted Apr 27, 2023 - 11:41 PDT

        Update

        We continue experiencing delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.
        Posted Apr 27, 2023 - 10:31 PDT

        Update

        We are still experiencing delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 27, 2023 - 08:33 PDT

        Investigating

        We are experiencing delays in receiving message delivery reports when sending to Zain network in Sudan. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.
        Posted Apr 27, 2023 - 07:33 PDT
        This incident affected: CARRIER NETWORK (SMS, Middle East & Africa).