---
page_type: error
code: 13214
message: "13214: Dial: Invalid callerId value"
level: WARNING
product: Programmable Voice
---

## Description

## Warning - 13214

### Dial: Invalid callerId value

callerId must be the calling number, called number, or a validated outgoing number. Additionally, if the calling leg is a client leg, the caller ID is required and must be a validated outgoing number. See the [Dial Verb](/docs/api/twiml/dial#callerId) API Reference for more information.

### Possible Causes

Carriers may send invalid Caller IDs on Incoming calls to Twilio. If a specific Caller ID is not explicitly defined on the verb, the invalid Caller ID will be passed to the destination. This may cause some destination providers to reject the call, and Twilio will mark it as failed.

### Possible Solutions

To work around this, your application should recognize invalid caller IDs, and substitute them with a valid Caller ID to construct the subsequent .