# 32219: SIP: Redirect failed

Log Type: APPLICATION

Log Level: ERROR

## Description

Twilio could not process the SIP 30x response from your SIP server.

### Possible causes

* Max redirect limit reached.
* Redirection is not allowed in the call to the registered SIP endpoint.
* Redirect target in the Contact header of the SIP 30x response is not a valid SIP URI.
* Redirect target is a private IP address.
* Redirect target is a Twilio domain such as \*.sip.twilio.com or \*.pstn.twilio.com.
* Redirect target is an IP in a deny list.

### Possible solutions

Review the Possible Causes and update the redirect target as needed.