Outage in Retreaver

Calls coming to Retreaver from Telnyx through SIP might have issues

Resolved Minor
September 17, 2025 - Started about 1 month ago - Lasted about 1 month
Official incident page

Incident Report

1. SIP invite is received from publishers using Telnyx. 2. Retreaver responds to the INVITE with 200 OK and continues responding for the next 30 seconds, but Telnyx SIP endpoint does not acknowledge the respons. This is an early sign that calls might be dropping. In SIP: When the caller (UAC) gets a 200 OK (INVITE), it must reply with an ACK. The callee (UAS) will keep retransmitting 200 OK until it receives that ACK. We advice clients to get in touch with publishers using Telnyx and platforms using Telnyx (not Retreaver) and to work with them to monitor the traffic.
Components affected
Retreaver Call Handling

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Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 10/18/2025 01:22PM

This incident has been resolved

IDENTIFIED about 1 month ago - at 09/17/2025 02:39PM

We can not implement a fix for this on our side. Waiting for a resolution from Telnyx

MONITORING about 1 month ago - at 09/17/2025 02:38PM

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

INVESTIGATING about 1 month ago - at 09/17/2025 01:48PM

1. SIP invite is received from publishers using Telnyx.
2. Retreaver responds to the INVITE with 200 OK and continues responding for the next 30 seconds, but Telnyx SIP endpoint does not acknowledge the respons.

This is an early sign that calls might be dropping.

In SIP:

When the caller (UAC) gets a 200 OK (INVITE), it must reply with an ACK.
The callee (UAS) will keep retransmitting 200 OK until it receives that ACK.

We advice clients to get in touch with publishers using Telnyx and platforms using Telnyx (not Retreaver) and to work with them to monitor the traffic.

Latest Retreaver outages

AWS degraded - about 19 hours ago
AWS outage - 1 day ago
Detected an increase in errors on web portal - about 2 months ago
Calls moving through Telnyx numbers may have connection issues at the moment - 2 months ago
Investigating some RTB calls not showing up in reporting - 3 months ago

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