---
page_type: error
code: 32400
message: "32400: BYOC Trunk routing failure - failover routing disabled."
level: ERROR
product: Programmable Voice
---

## 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.