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

# Numbers - Update MMS Settings

> Enable or disable MMS (multimedia messaging) on a provisioned phone number. Use this to turn picture, video and group messaging on for a line, or to disable it while leaving SMS in place.

**What this does:** Sets the MMS feature flag on the line and returns the resulting state. SMS is unaffected either way — disabling MMS does not stop the line sending or receiving text messages.

**Reading the response:** `MMS` reflects the state of the line after the update (`Enabled` or `Disabled`). Check `Status` — `Success` means the change was applied; any other value means it was not, and `StatusMessage` carries the reason.

**Next steps:**
- Confirm the line's current service state — `POST /v1.0/numbers/status`
- Review the account's message routing — `GET /v1.0/message/routes`



## OpenAPI

````yaml /api-reference/openapi.json post /v1.0/numbers/mms/update
openapi: 3.0.3
info:
  title: mPaaS Core APIs
  version: 1.0.8
  description: >-
    The Telegent mPaaS (Mobile Platform as a Service) API gives you full
    programmatic control over mobile phone numbers, messaging, voice routing,
    subscribers, and account management. Use these APIs to provision MVNO and
    IoT numbers, send and receive SMS/MMS, configure intelligent call routing,
    manage subscriber accounts, and apply AI Guardian controls. All requests
    require a Bearer token obtained from the Authentication endpoint. For
    support, visit https://support.telegent.com/support/home
  contact:
    name: Support
    email: support@telegent.com
  termsOfService: https://telegent.com/terms
  license:
    name: Use under LICX
    url: https://telegent.com/license
servers:
  - url: https://api.telegent.com
security:
  - BearerAuth: []
tags:
  - name: OAuth2
  - name: AI Guardian
  - name: Accounts
  - name: Distributors
  - name: Message
  - name: Numbers
  - name: Voicemail
  - name: Packages
  - name: Products
  - name: Schedules
  - name: Services
  - name: Sims
  - name: Subscribers
  - name: Subscriptions
  - name: Voice
  - name: Workgroups
  - name: Health Status
paths:
  /v1.0/numbers/mms/update:
    post:
      tags:
        - Numbers
      summary: Numbers - Update MMS Settings
      description: >-
        Enable or disable MMS (multimedia messaging) on a provisioned phone
        number. Use this to turn picture, video and group messaging on for a
        line, or to disable it while leaving SMS in place.


        **What this does:** Sets the MMS feature flag on the line and returns
        the resulting state. SMS is unaffected either way — disabling MMS does
        not stop the line sending or receiving text messages.


        **Reading the response:** `MMS` reflects the state of the line after the
        update (`Enabled` or `Disabled`). Check `Status` — `Success` means the
        change was applied; any other value means it was not, and
        `StatusMessage` carries the reason.


        **Next steps:**

        - Confirm the line's current service state — `POST /v1.0/numbers/status`

        - Review the account's message routing — `GET /v1.0/message/routes`
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              required:
                - EnableMms
                - PhoneNumber
              type: object
              properties:
                PhoneNumber:
                  type: string
                  description: >-
                    The phone number to update, in E.164 format (e.g.
                    `+13156120726`). Required.
                  example: '+13156120726'
                AccountId:
                  type: string
                  nullable: true
                  description: >-
                    Account identifier (`AID-` prefix) that the number belongs
                    to. Conditional — required for distributors whose Bearer
                    token has access to more than one account, and optional
                    otherwise.
                  example: AID-eab92510-1040-45a5-bb9c-xxxx
                EnableMms:
                  type: boolean
                  description: >-
                    Set to `true` to enable MMS on the number, or `false` to
                    disable it. Required.
                  example: true
      responses:
        '200':
          description: Success — returns the line's MMS state after the update
          content:
            application/json:
              schema:
                type: object
              examples:
                example:
                  value:
                    PhoneNumber: '+13156120726'
                    AccountId: AID-eab92510-1040-45a5-bb9c-xxxx
                    MMS: Enabled
                    Status: Success
                    StatusMessage: MMS settings updated successfully.
        '400':
          description: Bad Request
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/BadRequest_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequest_Result'
              examples:
                example:
                  value:
                    StatusCode: 400
                    Message: >-
                      Bad request: one or more required fields are missing or
                      contain an invalid value.
            text/json:
              schema:
                $ref: '#/components/schemas/BadRequest_Result'
        '401':
          description: Unauthorized
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Unauthorized_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/Unauthorized_Result'
              examples:
                example:
                  value:
                    StatusCode: 401
                    Message: >-
                      Unauthorized: Bearer token is missing, expired, or
                      invalid. Re-authenticate via POST /v1.0/oauth2/tokens.
            text/json:
              schema:
                $ref: '#/components/schemas/Unauthorized_Result'
        '403':
          description: Forbidden
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Forbidden_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/Forbidden_Result'
              examples:
                example:
                  value:
                    StatusCode: 403
                    Message: >-
                      Forbidden: your token does not have permission to access
                      this resource. Check the ApiEndpoint scope.
            text/json:
              schema:
                $ref: '#/components/schemas/Forbidden_Result'
        '404':
          description: Not Found
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/NotFound_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/NotFound_Result'
              examples:
                example:
                  value:
                    StatusCode: 404
                    Message: >-
                      Not found: the requested resource does not exist or
                      belongs to a different account.
            text/json:
              schema:
                $ref: '#/components/schemas/NotFound_Result'
        '405':
          description: Method Not Allowed
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/MethodNotAllowed_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/MethodNotAllowed_Result'
              examples:
                example:
                  value:
                    StatusCode: 405
                    Message: >-
                      Method not allowed: verify the HTTP method required for
                      this endpoint.
            text/json:
              schema:
                $ref: '#/components/schemas/MethodNotAllowed_Result'
        '408':
          description: Request Timeout
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/RequestTimeout_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/RequestTimeout_Result'
              examples:
                example:
                  value:
                    StatusCode: 408
                    Message: >-
                      Request timeout: the server did not receive a complete
                      request within the allowed time. Retry with exponential
                      backoff.
            text/json:
              schema:
                $ref: '#/components/schemas/RequestTimeout_Result'
        '429':
          description: Too Many Requests
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/TooManyRequests_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/TooManyRequests_Result'
              examples:
                example:
                  value:
                    StatusCode: 429
                    Message: >-
                      Too many requests: rate limit exceeded. Slow your request
                      cadence and retry after a short delay.
            text/json:
              schema:
                $ref: '#/components/schemas/TooManyRequests_Result'
        '500':
          description: Server Error
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/InternalServerError_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerError_Result'
              examples:
                example:
                  value:
                    StatusCode: 500
                    Message: >-
                      Internal server error: an unexpected error occurred. If
                      the problem persists contact support@telegent.com.
            text/json:
              schema:
                $ref: '#/components/schemas/InternalServerError_Result'
        '503':
          description: Service Unavailable
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/ServiceUnavailable_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceUnavailable_Result'
              examples:
                example:
                  value:
                    StatusCode: 503
                    Message: >-
                      Service unavailable: the API is temporarily unavailable.
                      Retry after a short delay.
            text/json:
              schema:
                $ref: '#/components/schemas/ServiceUnavailable_Result'
        '504':
          description: Gateway Timeout
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/GatewayTimeout_Result'
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayTimeout_Result'
              examples:
                example:
                  value:
                    StatusCode: 504
                    Message: >-
                      Gateway timeout: an upstream service did not respond in
                      time. Retry with exponential backoff.
            text/json:
              schema:
                $ref: '#/components/schemas/GatewayTimeout_Result'
      x-codeSamples:
        - lang: JSON
          source: |-
            {
              "PhoneNumber": "+13156120726",
              "AccountId": "AID-eab92510-1040-45a5-bb9c-xxxx",
              "EnableMms": true
            }
        - lang: cURL
          source: |-
            curl -X POST https://api.telegent.com/v1.0/numbers/mms/update \
              -H 'Authorization: Bearer YOUR_TOKEN' \
              -H 'Content-Type: application/json' \
              -d '{
                "PhoneNumber": "+13156120726",
                "AccountId": "AID-eab92510-1040-45a5-bb9c-xxxx",
                "EnableMms": true
              }'
components:
  schemas:
    BadRequest_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    Unauthorized_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    Forbidden_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    NotFound_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    MethodNotAllowed_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    RequestTimeout_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    TooManyRequests_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    InternalServerError_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    ServiceUnavailable_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false
    GatewayTimeout_Result:
      required:
        - StatusCode
      type: object
      properties:
        StatusCode:
          type: integer
          format: int32
        Message:
          type: string
          nullable: true
      additionalProperties: false

````