> ## Documentation Index > Fetch the complete documentation index at: https://docs.orbit.devotel.io/llms.txt > Use this file to discover all available pages before exploring further. # Activate a SIM > Transition an `ordered` (or `suspended`) SIM to `active`. Returns 409 on an illegal transition. Requires the `numbers:write` scope. ## OpenAPI ````yaml /openapi.yaml post /api/v1/numbers/connectivity/sims/{iccid}/activate openapi: 3.1.0 info: title: Devotel CPaaS API description: Orbit by Devotel — Communications Platform as a Service API version: 1.0.0 contact: name: Devotel url: https://devotel.io email: support@devotel.io license: name: Proprietary servers: - url: https://api.orbit.devotel.io description: Production security: - Bearer: [] - ApiKey: [] tags: - name: Messages description: >- Send and manage messages across all channels (SMS, WhatsApp, RCS, Email, Viber, etc.) - name: Fax description: >- List and track fax (MMS/T.38) transmissions on Telnyx-backed fax numbers (sending flows through the Messaging API) - name: Agents description: AI agent creation, configuration, and execution - name: Voice description: Voice calls, IVR, conferencing, and SIP trunking - name: OnCall description: On-call rotations and escalation policy planning for incident alerting - name: Webhooks description: Webhook endpoint management and delivery logs - name: Numbers description: Phone number search, provisioning, and configuration - name: Brand Identity description: >- Unified cross-channel brand trust posture (10DLC, toll-free, WhatsApp, RCS, branded calling, number KYC) - name: Contacts description: Contact management, segmentation, and lifecycle tracking - name: Campaigns description: Marketing campaign orchestration and analytics - name: Flows description: Automation flow builder and execution engine - name: Templates description: Message template management and approval workflows - name: Settings description: Organization, channel, and user preference settings - name: Verify description: OTP generation and verification across channels - name: Push description: Push notification delivery via FCM and APNs - name: Integrations description: Third-party service connections and OAuth management - name: CDP description: >- Customer Data Platform — activation surface (CRM object sync, streaming destinations, ad-audience activation) - name: Files description: >- Server-to-server media upload, listing, retrieval, and deletion (signed-URL backed) - name: Commerce description: >- Omnichannel conversational-commerce — persistent cart + checkout state machine, channel-agnostic hosted pay-by-link, native WhatsApp checkout, and AP2-style agent payment mandates. - name: Sync description: >- Real-time shared-state primitive (Twilio Sync parity) — Documents, Maps, Lists, and ephemeral Streams, with change events relayed over the /api/v1/ws/sync WebSocket gateway paths: /api/v1/numbers/connectivity/sims/{iccid}/activate: post: tags: - Numbers summary: Activate a SIM description: >- Transition an `ordered` (or `suspended`) SIM to `active`. Returns 409 on an illegal transition. Requires the `numbers:write` scope. parameters: - in: path name: iccid required: true schema: type: string responses: '200': description: Updated SIM content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/ConnectivitySim' meta: $ref: '#/components/schemas/ResponseMeta' '404': $ref: '#/components/responses/StandardError' '409': $ref: '#/components/responses/StandardError' components: schemas: ConnectivitySim: type: object description: >- A provisioned eSIM / IoT SIM and its lifecycle state. DATA-ONLY — only provisionable against a data-only catalog plan (invariant #45). required: - iccid - planId - state - usageBytes - otaProfileId - dataSessions - createdAt - updatedAt properties: iccid: type: string description: >- GSMA/ITU-T E.118 ICCID. Minted server-side (19-digit) when omitted at order time. planId: type: string description: Catalog plan the SIM was ordered against. state: type: string enum: - ordered - active - suspended - terminated usageBytes: type: integer description: Authoritative cumulative data meter, in bytes. otaProfileId: type: string nullable: true description: Applied OTA configuration profile id, or null when none. label: type: string description: Operator-facing nickname for the device / line. fleetId: type: string description: Optional fleet grouping id. dataSessions: type: array items: $ref: '#/components/schemas/ConnectivitySimDataSession' description: >- Rolling window of recent metered data sessions (newest first, capped). createdAt: type: string format: date-time updatedAt: type: string format: date-time activatedAt: type: string format: date-time description: When the SIM first went active. terminatedAt: type: string format: date-time description: When the SIM was terminated. ResponseMeta: type: object required: - request_id - timestamp additionalProperties: false properties: request_id: type: string description: Unique request identifier (also returned as X-Request-Id header) timestamp: type: string format: date-time docs_url: type: string format: uri nullable: true ConnectivitySimDataSession: type: object description: >- A single metered data session recorded against a SIM (descriptive telemetry; neither rated nor billed here). required: - id - bytes - recordedAt properties: id: type: string description: Opaque session id (client-supplied or minted server-side). bytes: type: number description: Bytes consumed in this session (finite, non-negative). networkIso2: type: string description: >- ISO 3166-1 alpha-2 of the network the session attached to, when known. recordedAt: type: string format: date-time responses: StandardError: description: >- Standard error envelope. `error.code` is machine-readable; see the [error reference](https://docs.orbit.devotel.io/reference/error-codes) for the catalogue. content: application/json: schema: type: object properties: error: type: object required: - code - message - status properties: code: type: string description: Machine-readable error code (e.g. INVALID_PHONE_NUMBER) message: type: string description: Human-readable error description status: type: integer description: HTTP status code details: type: object additionalProperties: true description: Additional context about the error meta: type: object properties: request_id: type: string timestamp: type: string format: date-time docs_url: type: string format: uri description: Link to relevant error documentation securitySchemes: Bearer: type: http scheme: bearer bearerFormat: JWT description: Dashboard JWT token from Clerk ApiKey: type: apiKey name: X-API-Key in: header description: Server-to-server API key (dv_live_sk_*) ````