# 40145: TaskRouter->Conference

Log Level: ERROR

## Description

### Possible causes

* Un-routable address provided for 'to' field.
* Invalid caller-id passed to 'from' field.
* Missing 'room\_name' 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 'room\_name' is a valid Conference Room Name.

### Example

```bash
{
	"instruction": "conference",
	"room_name": "abc",
	"to": "client:alice",
	"from": "18001234567",
	"post_work_activity_sid": "WA0123456789abcdef0123456789abcdef"
}
```