FreJun Teler

FreJun Teler SIP / Trunks API

SIP trunks connect Teler to your upstream carrier or PBX. Create, configure, and manage your trunks, or inspect which virtual numbers are assigned to each one.

Documentation GitHub OpenAPI

Operations 6

POST /api/v1/sip/trunks Create a SIP trunk #

GET /api/v1/sip/trunks List SIP trunks #

GET /api/v1/sip/trunks/{trunk_id} Retrieve a SIP trunk #

PATCH /api/v1/sip/trunks/{trunk_id} Update a SIP trunk #

DELETE /api/v1/sip/trunks/{trunk_id} Delete a SIP trunk #

GET /api/v1/sip/trunks/{trunk_id}/virtual-numbers List virtual numbers for a SIP trunk #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Teler API Reference SIP / Trunks API
  summary: Programmable voice infrastructure for AI agents.
  description: 'The Teler API lets you place and control programmable voice calls, stream live

    audio to AI agents, and observe everything that happens on a call in real time.'
  contact:
    name: Teler support
    email: support@frejun.com
  version: 0.1.0
servers:
- url: https://api.frejun.ai
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: SIP Trunks
  description: SIP trunks connect Teler to your upstream carrier or PBX. Create, configure, and manage your trunks, or inspect which virtual numbers are assigned to each one.
paths:
  /api/v1/sip/trunks:
    post:
      tags:
      - SIP Trunks
      summary: Create a SIP trunk
      operationId: create_sip_trunk
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SipTrunkCreate'
      responses:
        '201':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SipTrunkResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    get:
      tags:
      - SIP Trunks
      summary: List SIP trunks
      operationId: list_sip_trunks
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          default: 50
          title: Limit
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Search
      - name: status
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              $ref: '#/components/schemas/Status'
          - type: 'null'
          title: Status
      - name: cursor_after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor After
      - name: cursor_before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor Before
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CursorPage_SipTrunkResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
  /api/v1/sip/trunks/{trunk_id}:
    get:
      tags:
      - SIP Trunks
      summary: Retrieve a SIP trunk
      operationId: retrieve_sip_trunk
      parameters:
      - name: trunk_id
        in: path
        required: true
        schema:
          type: string
          title: Trunk Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SipTrunkResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    patch:
      tags:
      - SIP Trunks
      summary: Update a SIP trunk
      operationId: update_sip_trunk
      parameters:
      - name: trunk_id
        in: path
        required: true
        schema:
          type: string
          title: Trunk Id
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SipTrunkUpdate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SipTrunkResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    delete:
      tags:
      - SIP Trunks
      summary: Delete a SIP trunk
      operationId: delete_sip_trunk
      parameters:
      - name: trunk_id
        in: path
        required: true
        schema:
          type: string
          title: Trunk Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DefaultResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
  /api/v1/sip/trunks/{trunk_id}/virtual-numbers:
    get:
      tags:
      - SIP Trunks
      summary: List virtual numbers for a SIP trunk
      operationId: list_sip_trunk_virtual_numbers
      parameters:
      - name: trunk_id
        in: path
        required: true
        schema:
          type: string
          title: Trunk Id
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          default: 10
          title: Limit
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Search
      - name: location
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          title: Location
      - name: cursor_after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor After
      - name: cursor_before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor Before
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CursorPage_VNListResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
components:
  schemas:
    InboundRoute:
      properties:
        name:
          type: string
          minLength: 1
          title: Name
          description: Route name
        sip_url:
          type: string
          minLength: 1
          title: Sip Url
          description: SIP destination URL or endpoint
        sip_user:
          anyOf:
          - type: string
          - type: 'null'
          title: Sip User
          description: SIP user name
      type: object
      required:
      - name
      - sip_url
      title: InboundRoute
    ValidationFieldError:
      properties:
        loc:
          items: {}
          type: array
          title: Loc
          description: Path to the offending field, e.g. `["body", "to_number"]`.
        msg:
          type: string
          title: Msg
          description: Human-readable explanation of the problem.
        type:
          type: string
          title: Type
          description: Programmatic error type, e.g. `string_pattern_mismatch`.
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationFieldError
      description: One field-level problem within a `422` validation error.
    ValidationErrorResponse:
      properties:
        success:
          type: boolean
          title: Success
          description: Always `false`.
          default: false
        message:
          type: string
          title: Message
          description: Always `"Validation Error"` for this response.
          default: Validation Error
        errors:
          items:
            $ref: '#/components/schemas/ValidationFieldError'
          type: array
          title: Errors
          description: One entry per field that failed validation.
      type: object
      required:
      - errors
      title: ValidationErrorResponse
      description: Returned with `422` when the request fails schema validation.
      example:
        errors:
        - loc:
          - body
          - to_number
          msg: String should match pattern '^\+\d{7,15}$'
          type: string_pattern_mismatch
        message: Validation Error
        success: false
    DefaultResponse:
      properties:
        success:
          type: boolean
          title: Success
        message:
          type: string
          title: Message
      type: object
      required:
      - success
      - message
      title: DefaultResponse
    Status:
      type: string
      enum:
      - active
      - inactive
      title: Status
    SipTransport:
      type: string
      enum:
      - tls
      - tcp
      - udp
      title: SipTransport
    SipTrunkUpdate:
      properties:
        name:
          anyOf:
          - type: string
            minLength: 1
          - type: 'null'
          title: Name
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
        recording:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Recording
        secure:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Secure
        transport:
          anyOf:
          - $ref: '#/components/schemas/SipTransport'
          - type: 'null'
          description: 'SIP transport: `tls`, `tcp`, or `udp`. `udp` requires `authentication_type` = `credential`.'
        is_active:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Is Active
        webhook_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Webhook Url
        webhook_api_version:
          anyOf:
          - type: string
            enum:
            - '2025-08-01'
            - '2026-06-01'
          - type: 'null'
          title: Webhook Api Version
        authentication_type:
          anyOf:
          - $ref: '#/components/schemas/AuthenticationType'
          - type: 'null'
        auth_credential:
          anyOf:
          - $ref: '#/components/schemas/SipAuthCredentialInput'
          - type: 'null'
        auth_addresses:
          anyOf:
          - items:
              $ref: '#/components/schemas/SipAuthAddressInput'
            type: array
          - type: 'null'
          title: Auth Addresses
        ip_acl_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Ip Acl Id
          description: ID of an IP access control list (`acl_...`) to authorise against, as an alternative to `auth_addresses`. Supplying one switches the trunk to that mode and clears the other.
        inbound_route:
          anyOf:
          - $ref: '#/components/schemas/InboundRoute'
          - type: 'null'
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
      additionalProperties: false
      type: object
      title: SipTrunkUpdate
    SipTrunkCreate:
      properties:
        name:
          type: string
          minLength: 1
          title: Name
        domain_name:
          type: string
          minLength: 1
          title: Domain Name
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
          default: 0
        recording:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Recording
          default: false
        secure:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Secure
          default: false
        transport:
          anyOf:
          - $ref: '#/components/schemas/SipTransport'
          - type: 'null'
          description: 'SIP transport for this trunk: `tls`, `tcp`, or `udp`. If omitted, it is derived from `secure` (`secure=true`→`tls`, else `tcp`). `udp` requires `authentication_type` = `credential`.'
        webhook_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Webhook Url
        authentication_type:
          $ref: '#/components/schemas/AuthenticationType'
        auth_credential:
          anyOf:
          - $ref: '#/components/schemas/SipAuthCredentialInput'
          - type: 'null'
        auth_addresses:
          anyOf:
          - items:
              $ref: '#/components/schemas/SipAuthAddressInput'
            type: array
          - type: 'null'
          title: Auth Addresses
        ip_acl_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Ip Acl Id
          description: ID of an IP access control list (`acl_...`) to authorise against, as an alternative to `auth_addresses`. Provide exactly one of the two when `authentication_type` is `IP`.
        inbound_route:
          anyOf:
          - $ref: '#/components/schemas/InboundRoute'
          - type: 'null'
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
        webhook_api_version:
          anyOf:
          - type: string
            enum:
            - '2025-08-01'
            - '2026-06-01'
          - type: 'null'
          title: Webhook Api Version
      additionalProperties: false
      type: object
      required:
      - name
      - domain_name
      - authentication_type
      title: SipTrunkCreate
    SipAuthAddressInput:
      properties:
        name:
          type: string
          minLength: 1
          title: Name
          description: Authentication address name
        address:
          type: string
          minLength: 1
          title: Address
          description: IP or hostname for SIP auth
      type: object
      required:
      - name
      - address
      title: SipAuthAddressInput
    CursorPage_VNListResponse_:
      properties:
        data:
          items:
            $ref: '#/components/schemas/VNListResponse'
          type: array
          title: Data
          description: The page of results, newest first.
        next_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Next Cursor
          description: Pass as `cursor_after` to fetch the next (older) page. `null` on the last page.
        previous_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Previous Cursor
          description: Pass as `cursor_before` to fetch the previous (newer) page. `null` on the first page.
        has_more:
          type: boolean
          title: Has More
          description: Whether more results exist after this page.
          default: false
      type: object
      required:
      - data
      title: CursorPage[VNListResponse]
    CursorPage_SipTrunkResponse_:
      properties:
        data:
          items:
            $ref: '#/components/schemas/SipTrunkResponse'
          type: array
          title: Data
          description: The page of results, newest first.
        next_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Next Cursor
          description: Pass as `cursor_after` to fetch the next (older) page. `null` on the last page.
        previous_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Previous Cursor
          description: Pass as `cursor_before` to fetch the previous (newer) page. `null` on the first page.
        has_more:
          type: boolean
          title: Has More
          description: Whether more results exist after this page.
          default: false
      type: object
      required:
      - data
      title: CursorPage[SipTrunkResponse]
    SipAuthCredentialInput:
      properties:
        username:
          type: string
          minLength: 5
          title: Username
          description: SIP authentication username
        password:
          type: string
          minLength: 5
          title: Password
          description: SIP authentication password
      type: object
      required:
      - username
      - password
      title: SipAuthCredentialInput
    VNListResponse:
      properties:
        id:
          type: string
          title: Id
        account_id:
          type: string
          title: Account Id
        name:
          type: string
          title: Name
        number:
          type: string
          title: Number
        location:
          $ref: '#/components/schemas/LocationResponse'
        voice_app:
          anyOf:
          - $ref: '#/components/schemas/CallAppListResponse'
          - type: 'null'
        sip_trunk:
          anyOf:
          - $ref: '#/components/schemas/SipTrunkListResponse'
          - type: 'null'
      type: object
      required:
      - id
      - account_id
      - name
      - number
      - location
      - voice_app
      - sip_trunk
      title: VNListResponse
    SipTrunkListResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
      type: object
      required:
      - id
      - name
      title: SipTrunkListResponse
    CallAppListResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
      type: object
      required:
      - id
      - name
      title: CallAppListResponse
    SipTrunkResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
        domain_name:
          type: string
          title: Domain Name
        account_id:
          type: string
          title: Account Id
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
        cps_limit:
          type: integer
          title: Cps Limit
        recording_enabled:
          type: boolean
          title: Recording Enabled
        secure:
          type: boolean
          title: Secure
        transport:
          anyOf:
          - $ref: '#/components/schemas/SipTransport'
          - type: 'null'
        is_active:
          type: boolean
          title: Is Active
        authentication_type:
          anyOf:
          - $ref: '#/components/schemas/AuthenticationType'
          - type: 'null'
        auth_ip_addresses:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          title: Auth Ip Addresses
          default: []
        auth_credential_usernames:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          title: Auth Credential Usernames
          default: []
        ip_acl_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Ip Acl Id
          description: The IP access control list this trunk authorises against, if any.
        ip_acl_name:
          anyOf:
          - type: string
          - type: 'null'
          title: Ip Acl Name
        sip_route:
          anyOf:
          - $ref: '#/components/schemas/InboundRoute'
          - type: 'null'
        webhook_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Webhook Url
        webhook_api_version:
          type: string
          enum:
          - '2025-08-01'
          - '2026-06-01'
          title: Webhook Api Version
        created_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Created At
        updated_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Updated At
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
        secret_name:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Name
      type: object
      required:
      - id
      - name
      - domain_name
      - account_id
      - cps_limit
      - recording_enabled
      - secure
      - is_active
      - webhook_api_version
      title: SipTrunkResponse
    LocationResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
        region_code:
          type: string
          title: Region Code
        country_code:
          type: string
          title: Country Code
        country_name:
          anyOf:
          - type: string
          - type: 'null'
          title: Country Name
      type: object
      required:
      - id
      - name
      - region_code
      - country_code
      title: LocationResponse
    AuthenticationType:
      type: string
      enum:
      - credential
      - IP
      title: AuthenticationType
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Your secret account API key. Create one in the Teler dashboard.