SMS Delivery Receipt Delays from Twilio to Telekom Srbija Serbia

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery receipt delays from Twilio to Telekom Srbija network subscribers in Serbia. This incident has been resolved.

Posted Mar 18, 2026 - 19:55 PDT

Update

We still observe a recovery in SMS delivery receipts from Twilio to Telekom Srbija network subscribers in Serbia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Mar 18, 2026 - 17:58 PDT

Monitoring

We have observed a recovery in SMS delivery receipts from Twilio to Telekom Srbija network subscribers in Serbia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Mar 18, 2026 - 16:21 PDT

Identified

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telekom Srbija network subscribers in Serbia. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Mar 18, 2026 - 16:20 PDT

Investigating

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telekom Srbija network subscribers in Serbia. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Mar 18, 2026 - 16:19 PDT

This incident affected: CARRIER NETWORK (SMS, Europe).