# 40113: TaskRouter->Call

Log Level: ERROR

## Description

### Possible causes

* Un-routable address provided for "to" field.
* Invalid caller-id passed to "from" field.
* Poorly formed URL passed to "url" field.
* Internal Twilio API error.

### Possible solutions

* Make certain "to" contains a routable phone number, client URI or SIP URI.
* Make certain "to" is to a country you have permissions set to call.
* Make certain "from" contains an acceptable caller ID for the chosen "to" address.
* Make certain "url" is a valid HTTP/HTTPS URL.

### Example

```bash
{
	"instruction": "call",
	"to": "client:alice",
	"from": "bob",
	"url": "https://example.com/twiml"
}
```