Background
When you make changes in the Telnyx Mission Control Portal or through the Telnyx API, those updates must propagate across a globally distributed infrastructure. Telnyx runs multiple instances across data centers worldwide, and each change needs to reach all of them before it becomes fully effective.
Propagation Timing
Minimum: ~1 second
Average: ~1.5 seconds
Maximum: ~3 seconds
This propagation window applies to all configuration updates, including but not limited to:
Creating or modifying On-Demand SIP Credentials.
Updating call control settings.
Modifying connection configurations.
Editing messaging profiles or number settings.
Because of this short but unavoidable delay, customers should design their workflows with propagation time in mind. For example, if you create new SIP credentials and attempt to use them immediately, authentication may fail until propagation completes. Adding a small delay before first use—or pre-creating credentials ahead of time—avoids potential issues.
Building this expectation into your application logic ensures a smoother and more reliable experience when interacting with the Telnyx platform.