# Set

## Function

This API is used to control two-way intercom.

## Request Message

### Parameter Description

See PreviewChannel > DualTalk > Get > Parameter Description > Table 1 for parameter description.

Sample:

    POST /API/PreviewChannel/DualTalk/Set HTTP/1.1

    {
        "version": "1.0",
        "data":{
            "channel": "CH1",
            "action": 1
        }
    }

## Response Message

None.

Sample:

    HTTP/1.1 200 OK
    Content-Type: application/json

    {
        "result":"success",
        "data":{
        }
    }

## Error Code

See Response Messages Body and Common error_code for more information.