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

# Update a phone number's settings

> Mutates name + recording flags + CNAM display name. CNAM is the caller-ID name shown on outbound calls (max 15 chars, US local numbers only). Setting `cnam_display_name` updates the carrier on the spot — propagation to carriers takes 24-72h.



## OpenAPI

````yaml /openapi.json patch /v1/phone-numbers/{id}
openapi: 3.1.0
info:
  title: LumisReach v1 API
  version: 1.0.0
  description: >-
    Programmatic access to the LumisReach voice platform — calls, numbers,
    caller trust, and brands.
  contact:
    name: LumisReach
    email: founders@lumisreach.com
servers:
  - url: https://api.lumisreach.com
security:
  - bearerAuth: []
tags:
  - name: Phone Numbers
  - name: Caller IDs
  - name: Enterprise Registration
  - name: Branded Calling
  - name: Calls
  - name: SMS
  - name: WebRTC
  - name: Reputation
  - name: Usage
  - name: Account
  - name: Documents
  - name: Sub-entities
paths:
  /v1/phone-numbers/{id}:
    patch:
      tags:
        - Phone Numbers
      summary: Update a phone number's settings
      description: >-
        Mutates name + recording flags + CNAM display name. CNAM is the
        caller-ID name shown on outbound calls (max 15 chars, US local numbers
        only). Setting `cnam_display_name` updates the carrier on the spot —
        propagation to carriers takes 24-72h.
      operationId: v1_phone_numbers_id_patch
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
        - name: Idempotency-Key
          in: header
          required: false
          description: >-
            UUID — when present, deduplicates repeat submissions. See
            /api-reference/idempotency.
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $schema: http://json-schema.org/draft-07/schema#
              type: object
              properties:
                name:
                  type: string
                  maxLength: 120
                cnam_display_name:
                  type: string
                  minLength: 1
                  maxLength: 15
                cnam_enabled:
                  type: boolean
                recording_enabled:
                  type: boolean
                transcription_enabled:
                  type: boolean
              additionalProperties: false
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $schema: http://json-schema.org/draft-07/schema#
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      id:
                        type: number
                      cnam_display_name:
                        anyOf:
                          - type: string
                          - type: 'null'
                      cnam_status:
                        type: string
                      name:
                        anyOf:
                          - type: string
                          - type: 'null'
                      recording_enabled:
                        type: boolean
                      transcription_enabled:
                        type: boolean
                    required:
                      - id
                      - cnam_display_name
                      - cnam_status
                      - name
                      - recording_enabled
                      - transcription_enabled
                    additionalProperties: false
                required:
                  - data
                additionalProperties: false
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '409':
          description: Conflict (incl. idempotency conflicts)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '429':
          description: Rate limited
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
components:
  schemas:
    ErrorEnvelope:
      type: object
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
            message:
              type: string
            fields:
              type: object
              additionalProperties:
                type: string
            doc_url:
              type: string
              format: uri
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````