# 32400: BYOC Trunk routing failure - failover routing disabled.

Log Type: APPLICATION

Log Level: ERROR

## Description

Call delivery attempt(s) over the specified BYOC Trunk did not succeed. Failover routing was disabled.

### Possible causes

Twilio encountered errors communicating with your SIP communications infrastructure.

### Possible solutions

Look for errors with error code [32011](/docs/api/errors/32011), Error communicating with your SIP communications infrastructure, and follow instructions.