> ## Documentation Index
> Fetch the complete documentation index at: https://docs.photon.codes/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Use Stable documentation by default. Honor an explicit Beta request or a URL under /docs/beta/. If the requested version conflicts with the installed CLI package or API origin, clarify the target before writing integration code.
> Pages under /docs/beta/ document Beta; other product pages document Stable. Keep the CLI package, commands, API origin, and credentials within the selected version. State the documentation version in your answer.
> For MCP search, always pass version: Stable or version: Beta. Unfiltered search mixes both versions. For filesystem reads, keep Beta queries under /beta/ and exclude /beta/ from Stable queries; discover paths before reading them.
> The public docs base is https://photon.codes/docs. Convert MCP page paths to public URLs under that base, preserving /beta/ when present. Read https://photon.codes/docs/skill.md for version selection and https://photon.codes/docs/llms.txt for the version indexes.

# Update default Voice profile

> Update default Voice profile: updateDefaultVoiceProfile in the TypeScript, Python and Rust clients.

`PATCH /v1/projects/{id}/platforms/voice/profiles/default`

Patches the default profile's protocol or mediaEncryption when expectedVersion matches. Omitted fields are preserved. Its server-assigned name is immutable, and directional configuration uses the profileId returned by this resource. Requires platforms:write bound to the path project.

<Tabs>
  <Tab title="TypeScript">
    ```typescript TypeScript theme={null}
    photon.projects.platforms.updateDefaultVoiceProfile(input: UpdateDefaultVoiceProfileInput, options?: RequestOptions): Promise<UpdateDefaultVoiceProfileOutput>
    ```
  </Tab>

  <Tab title="Python">
    ```python Python theme={null}
    photon.projects.platforms.update_default_voice_profile(input: UpdateDefaultVoiceProfileInput) -> models.VoiceProfile
    ```
  </Tab>

  <Tab title="Rust">
    ```rust Rust theme={null}
    client.update_default_voice_profile(id: String, body: &types::UpdateDefaultVoiceProfileRequest).await -> Result<ResponseValue<types::VoiceProfile>, Error<UpdateDefaultVoiceProfileError>>
    ```
  </Tab>
</Tabs>

<RequestExample>
  ```typescript TypeScript theme={null}
  import { Photon } from "@photon-ai/api";

  const photon = new Photon({
    headers: { Authorization: `Bearer ${process.env.PHOTON_API_TOKEN}` },
  });
  const result = await photon.projects.platforms.updateDefaultVoiceProfile({
    path: {
      id: "id",
    },
    body: {
      expectedVersion: 1,
    },
  });
  ```

  ```python Python theme={null}
  import os

  from photon_api import Photon
  from photon_api.rpc_generated import UpdateDefaultVoiceProfileInput

  photon = Photon(headers={"Authorization": f"Bearer {os.environ['PHOTON_API_TOKEN']}"})
  result = photon.projects.platforms.update_default_voice_profile(
      UpdateDefaultVoiceProfileInput.model_validate({
          "path": {
              "id": "id",
          },
          "body": {
              "expectedVersion": 1,
          },
      })
  )
  ```

  ```rust Rust theme={null}
  use photon_ai_api::{Credential, PhotonClientBuilder, SecretString};

  let token = std::env::var("PHOTON_API_TOKEN")?;
  let client = PhotonClientBuilder::new()
      .credential("accountServiceKey", Credential::Bearer(SecretString::from(token)))
      .build()?;
  let result = client
      .update_default_voice_profile(
          "id".to_owned(),
          &serde_json::from_value(serde_json::json!({
              "expectedVersion": 1,
          }))?,
      )
      .await
      .map_err(|error| format!("{error:?}"))?
      .into_inner();
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "configuration": {
      "inbound": null,
      "outbound": null
    },
    "createdAt": "2026-01-01T00:00:00.000Z",
    "isDefault": true,
    "lineCount": 0,
    "mediaEncryption": "auto",
    "name": "string",
    "profileId": "string",
    "projectId": "string",
    "protocol": "sip",
    "updatedAt": "2026-01-01T00:00:00.000Z",
    "version": 1
  }
  ```
</ResponseExample>

## Parameters

<ParamField path="id" type={"string"} required />

## Body

<ParamField body="expectedVersion" type={"integer"} required />

<ParamField body="mediaEncryption" type={"VoiceProfileMediaEncryption"} />

<ParamField body="protocol" type={"\"sip\""} />

## Returns

**`200`** The updated default Voice profile. VoiceProfile

<ResponseField name="configuration" type={"VoiceProfileConfiguration"} required />

<ResponseField name="createdAt" type={"string (date-time)"} required />

<ResponseField name="isDefault" type={"boolean"} required />

<ResponseField name="lineCount" type={"integer"} required />

<ResponseField name="mediaEncryption" type={"VoiceProfileMediaEncryption"} required />

<ResponseField name="name" type={"string"} required />

<ResponseField name="profileId" type={"string"} required />

<ResponseField name="projectId" type={"string"} required />

<ResponseField name="protocol" type={"\"sip\""} required />

<ResponseField name="updatedAt" type={"string (date-time)"} required />

<ResponseField name="version" type={"integer"} required />


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