***

id: 6458668a-33de-4fab-9fac-2a874d5266de
slug: /reference/answer
title: answer
description: Answer incoming call and set an optional maximum duration.
max-toc-depth: 3
----------------

Answer incoming call and set an optional maximum duration.

## **Properties**

<ParamField path="answer" type="object" toc={true}>
  An object that accepts the following properties.
</ParamField>

<Indent>
  <ParamField path="answer.max_duration" type="integer" default="14400 seconds (4 hours)" toc={true}>
    Maximum duration in seconds for the call.
  </ParamField>

  <ParamField path="answer.codecs" type="string" toc={true}>
    Comma-separated string of codecs to offer. Valid codecs are: `PCMU`, `PCMA`, `G722`, `G729`, `AMR-WB`, `OPUS`, `VP8`, `H264`.
  </ParamField>

  <ParamField path="answer.username" type="string" toc={true}>
    Username to use for SIP authentication.
  </ParamField>

  <ParamField path="answer.password" type="string" toc={true}>
    Password to use for SIP authentication.
  </ParamField>
</Indent>

## **Examples**

### No parameters

<CodeBlocks>
  <CodeBlock title="YAML">
    ```yaml
    version: 1.0.0
    sections:
      main:
        - answer: {}
    ```
  </CodeBlock>

  <CodeBlock title="JSON">
    ```json
    {
      "version": "1.0.0",
      "sections": {
        "main": [
          {
            "answer": {}
          }
        ]
      }
    }
    ```
  </CodeBlock>
</CodeBlocks>

***

### Named parameter

<CodeBlocks>
  <CodeBlock title="YAML">
    ```yaml
    version: 1.0.0
    sections:
      main:
        - answer:
            max_duration: 60
    ```
  </CodeBlock>

  <CodeBlock title="JSON">
    ```json
    {
      "version": "1.0.0",
      "sections": {
        "main": [
          {
            "answer": {
              "max_duration": 60
            }
          }
        ]
      }
    }
    ```
  </CodeBlock>
</CodeBlocks>