Telnyx UAC Connections API

openapi: 3.1.0
info:
  contact:
    email: support@telnyx.com
  description: Telnyx provides global communications and connectivity APIs for developers — including SIP trunking, programmable voice, SMS, MMS, WhatsApp Business Messaging, Call Control, Fax, Wireless (IoT & eSIM), Phone Numbers (DID provisioning & porting), Emergency Services, and Network APIs for private interconnects and edge connectivity. Build, scale, and manage voice, messaging, and data networks with Telnyx's carrier-grade global infrastructure and API-first platform.
  title: Telnyx Access Tokens UAC Connections API
  version: 2.0.0
  x-endpoint-cost: light
servers:
- description: Version 2.0.0 of the Telnyx API
  url: https://api.telnyx.com/v2
security:
- bearerAuth: []
tags:
- description: UAC connection operations
  name: UAC Connections
paths:
  /uac_connections:
    get:
      description: Returns a list of your UAC connections. A UAC (User Agent Client) Connection registers Telnyx to your PBX — the opposite of a standard SIP trunk, where the PBX registers to Telnyx. Use UAC when your PBX doesn’t support outbound SIP registration or you need Telnyx to maintain the registration.
      operationId: ListUacConnections
      parameters:
      - $ref: '#/components/parameters/connections_FilterConsolidated'
      - $ref: '#/components/parameters/connections_PageConsolidated'
      - $ref: '#/components/parameters/connections_SortConnection'
      responses:
        '200':
          $ref: '#/components/responses/ListUacConnectionsResponse'
        '400':
          $ref: '#/components/responses/connections_BadRequestResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
      summary: List UAC connections
      tags:
      - UAC Connections
      x-endpoint-cost: medium
      x-group-parameters: 'true'
      x-latency-category: responsive
    post:
      description: Creates a UAC connection. A UAC (User Agent Client) Connection registers Telnyx to your PBX — the opposite of a standard SIP trunk, where the PBX registers to Telnyx. Use UAC when your PBX doesn’t support outbound SIP registration or you need Telnyx to maintain the registration.
      operationId: CreateUacConnection
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateUacConnectionRequest'
        description: Parameters that can be defined during UAC connection creation
        required: true
      responses:
        '201':
          $ref: '#/components/responses/UacConnectionResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
        '422':
          $ref: '#/components/responses/connections_UnprocessableEntityResponse'
      summary: Create a UAC connection
      tags:
      - UAC Connections
      x-endpoint-cost: medium
      x-latency-category: responsive
  /uac_connections/{id}:
    delete:
      description: Deletes an existing UAC connection.
      operationId: DeleteUacConnection
      parameters:
      - description: Identifies the resource.
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          $ref: '#/components/responses/UacConnectionResponse'
        '400':
          $ref: '#/components/responses/connections_BadRequestResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/connections_NotFoundResponse'
      summary: Delete a UAC connection
      tags:
      - UAC Connections
      x-latency-category: responsive
    get:
      description: Retrieves the details of an existing UAC connection.
      operationId: RetrieveUacConnection
      parameters:
      - description: Identifies the resource.
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          $ref: '#/components/responses/UacConnectionResponse'
        '400':
          $ref: '#/components/responses/connections_BadRequestResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/connections_NotFoundResponse'
      summary: Retrieve a UAC connection
      tags:
      - UAC Connections
      x-latency-category: responsive
    patch:
      description: Updates settings of an existing UAC connection.
      operationId: UpdateUacConnection
      parameters:
      - description: Identifies the resource.
        in: path
        name: id
        required: true
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateUacConnectionRequest'
        description: Parameters that can be updated in a UAC connection
        required: true
      responses:
        '200':
          $ref: '#/components/responses/UacConnectionResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/connections_NotFoundResponse'
        '422':
          $ref: '#/components/responses/connections_UnprocessableEntityResponse'
      summary: Update a UAC connection
      tags:
      - UAC Connections
      x-latency-category: responsive
  /uac_connections/{id}/actions/check_registration_status:
    post:
      description: Checks the registration status for a UAC connection (`registration_status`) as well as the timestamp for the last SIP registration event (`registration_status_updated_at`).
      operationId: CheckUacConnectionRegistrationStatus
      parameters:
      - description: Identifies the resource.
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          $ref: '#/components/responses/RegistrationStatusResponse'
        '400':
          $ref: '#/components/responses/connections_BadRequestResponse'
        '401':
          $ref: '#/components/responses/UnauthenticatedResponse'
        '403':
          $ref: '#/components/responses/connections_UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/connections_NotFoundResponse'
      summary: Check a UAC Connection Registration Status
      tags:
      - UAC Connections
      x-latency-category: responsive
components:
  responses:
    UacConnectionResponse:
      content:
        application/json:
          schema:
            properties:
              data:
                $ref: '#/components/schemas/UacConnection'
            title: UAC Connection Response
            type: object
      description: Successful response with details about a UAC connection.
    connections_NotFoundResponse:
      content:
        application/json:
          examples:
            notFound:
              value:
                errors:
                - code: '10005'
                  detail: The requested resource or URL could not be found.
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10005
                  source:
                    pointer: /
                  title: Resource not found
          schema:
            $ref: '#/components/schemas/ErrorResponse'
      description: The requested resource doesn't exist.
    ListUacConnectionsResponse:
      content:
        application/json:
          schema:
            properties:
              data:
                items:
                  $ref: '#/components/schemas/UacConnection'
                type: array
              meta:
                $ref: '#/components/schemas/connections_PaginationMeta'
            title: List UAC Connections Response
            type: object
      description: Successful response with a list of UAC connections.
    RegistrationStatusResponse:
      content:
        application/json:
          schema:
            properties:
              data:
                example:
                  ip_address: 190.106.106.121
                  last_registration: '2021-09-28T15:11:02'
                  port: 37223
                  record_type: registration_status
                  sip_username: rogerp
                  status: Expired
                  transport: UDP
                  user_agent: Z 5.4.12 v2.10.13.2-mod
                properties:
                  ip_address:
                    description: The ip used during the SIP connection
                    example: 190.106.106.121
                    type: string
                  last_registration:
                    description: ISO 8601 formatted date indicating when the resource was last updated.
                    example: '2018-02-02T22:25:27.521Z'
                    type: string
                  port:
                    description: The port of the SIP connection
                    example: 37223
                    type: integer
                  record_type:
                    description: Identifies the type of the resource.
                    example: registration_status
                    type: string
                  sip_username:
                    description: The user name of the SIP connection
                    example: sip_username
                    type: string
                  status:
                    description: The current registration status of your SIP connection
                    enum:
                    - Not Applicable
                    - Not Registered
                    - Failed
                    - Expired
                    - Registered
                    - Unregistered
                    type: string
                  transport:
                    description: The protocol of the SIP connection
                    example: TCP
                    type: string
                  user_agent:
                    description: The user agent of the SIP connection
                    example: Z 5.4.12 v2.10.13.2-mod
                    type: string
                title: Registration Status
                type: object
            title: Registration Status Response
            type: object
      description: Successful response with details about a credential connection registration status.
    UnauthenticatedResponse:
      content:
        application/json:
          examples:
            Authentication Failed:
              value:
                errors:
                - code: '10009'
                  detail: Could not understand the provided credentials.
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10009
                  title: Authentication failed
          schema:
            $ref: '#/components/schemas/ErrorResponse'
      description: Unauthorized
    connections_BadRequestResponse:
      content:
        application/json:
          examples:
            missingParameter:
              value:
                errors:
                - code: '10015'
                  detail: The request failed because it was not well-formed.
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10015
                  source:
                    pointer: /
                  title: Bad Request
          schema:
            $ref: '#/components/schemas/ErrorResponse'
      description: Bad request, the request was unacceptable, often due to missing a required parameter.
    connections_UnauthorizedResponse:
      content:
        application/json:
          examples:
            notAuthorized:
              value:
                errors:
                - code: '10010'
                  detail: You are not authorized to access the requested resource.
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10010
                  source:
                    pointer: /
                  title: Not authorized
          schema:
            $ref: '#/components/schemas/ErrorResponse'
      description: The user doesn't have the required permissions to perform the requested action.
    connections_UnprocessableEntityResponse:
      content:
        application/json:
          examples:
            unprocessableEntity:
              value:
                errors:
                - code: '10015'
                  detail: 'Invalid dnis_format: test, was provided. Acceptable formats are +e164, e164, national, sip_username'
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10015
                  source:
                    pointer: /inbound/dnis_number_format
                  title: Bad Request
          schema:
            $ref: '#/components/schemas/ErrorResponse'
      description: The request was well-formed but was unable to be followed due to semantic errors.
  schemas:
    UacInboundRequest:
      description: Inbound settings that can be supplied when creating or updating a UAC connection. The SIP subdomain fields returned in UAC connection responses are generated by Telnyx and are not accepted as request parameters.
      example:
        ani_number_format: +E.164
        channel_limit: 10
        codecs:
        - G722
        default_routing_method: sequential
        dnis_number_format: +e164
        generate_ringback_tone: true
        isup_headers_enabled: true
        prack_enabled: true
        shaken_stir_enabled: true
        simultaneous_ringing: enabled
        sip_compact_headers_enabled: true
        timeout_1xx_secs: 10
        timeout_2xx_secs: 20
      properties:
        ani_number_format:
          default: E.164-national
          description: This setting allows you to set the format with which the caller's number (ANI) is sent for inbound phone calls.
          enum:
          - +E.164
          - E.164
          - +E.164-national
          - E.164-national
          type: string
        channel_limit:
          default: null
          description: When set, this will limit the total number of inbound calls to phone numbers associated with this connection.
          type: integer
        codecs:
          default:
          - G722
          - G711U
          - G711A
          - G729
          - OPUS
          - H.264
          description: 'Defines the list of codecs that Telnyx will send for inbound calls to a specific number on your portal account, in priority order. This only works when the Connection the number is assigned to uses Media Handling mode: default. OPUS and H.264 codecs are available only when using TCP or TLS transport for SIP.'
          items:
            type: string
          type: array
        default_routing_method:
          description: Default routing method to be used when a number is associated with the connection. Must be one of the routing method types or left blank, other values are not allowed.
          enum:
          - sequential
          - round-robin
          type: string
        dnis_number_format:
          default: e164
          enum:
          - +e164
          - e164
          - national
          - sip_username
          type: string
        generate_ringback_tone:
          default: false
          description: Generate ringback tone through 183 session progress message with early media.
          type: boolean
        isup_headers_enabled:
          default: false
          description: When set, inbound phone calls will receive ISUP parameters via SIP headers. (Only when available and only when using TCP or TLS transport.)
          type: boolean
        prack_enabled:
          default: false
          description: Enable PRACK messages as defined in RFC3262.
          type: boolean
        shaken_stir_enabled:
          default: false
          description: When enabled the SIP Connection will receive the Identity header with Shaken/Stir data in the SIP INVITE message of inbound calls, even when using UDP transport.
          type: boolean
        simultaneous_ringing:
          default: disabled
          description: When enabled, allows multiple devices to ring simultaneously on incoming calls.
          enum:
          - disabled
          - enabled
          type: string
        sip_compact_headers_enabled:
          default: true
          description: Defaults to true.
          type: boolean
        timeout_1xx_secs:
          default: 3
          description: Time(sec) before aborting if connection is not made.
          maximum: 120
          minimum: 1
          type: integer
        timeout_2xx_secs:
          default: 90
          description: 'Time(sec) before aborting if call is unanswered (min: 1, max: 600).'
          maximum: 600
          minimum: 1
          type: integer
      title: UAC Inbound Request
      type: object
    DtmfType:
      default: RFC 2833
      description: Sets the type of DTMF digits sent from Telnyx to this Connection. Note that DTMF digits sent to Telnyx will be accepted in all formats.
      enum:
      - RFC 2833
      - Inband
      - SIP INFO
      example: Inband
      title: DTMF Type
      type: string
    connections_PaginationMeta:
      properties:
        page_number:
          example: 2
          type: integer
        page_size:
          example: 25
          type: integer
        total_pages:
          example: 3
          type: integer
        total_results:
          example: 55
          type: integer
      title: Pagination Meta
      type: object
    EncryptedMedia:
      description: Enable use of SRTP for encryption. Cannot be set if the transport_portocol is TLS.
      enum:
      - SRTP
      - null
      example: SRTP
      type:
      - string
      - 'null'
    CreateUacConnectionRequest:
      description: A UAC (User Agent Client) Connection registers Telnyx to your PBX — the opposite of a standard SIP trunk, where the PBX registers to Telnyx. Use UAC when your PBX doesn’t support outbound SIP registration or you need Telnyx to maintain the registration.
      example:
        active: true
        anchorsite_override: Latency
        android_push_credential_id: 06b09dfd-7154-4980-8b75-cebf7a9d4f8e
        call_cost_in_webhooks: false
        connection_name: my name
        default_on_hold_comfort_noise_enabled: false
        dtmf_type: RFC 2833
        encode_contact_header_enabled: true
        encrypted_media: SRTP
        external_uac_settings:
          auth_username: auth8492
          expiration_sec: 600
          from_user: '8492'
          outbound_proxy: outbound.sip-pbx.acme.example:5061
          password: testtesttest
          proxy: sip-pbx.acme.example
          transport: TLS
          username: ext8492
        inbound:
          ani_number_format: +E.164
          channel_limit: 10
          codecs:
          - G722
          dnis_number_format: +e164
          generate_ringback_tone: true
          isup_headers_enabled: true
          prack_enabled: true
          shaken_stir_enabled: true
          simultaneous_ringing: disabled
          sip_compact_headers_enabled: true
          timeout_1xx_secs: 10
          timeout_2xx_secs: 20
        internal_uac_settings:
          destination_uri: 14155550123@acme.sip.telnyx.com
        ios_push_credential_id: ec0c8e5d-439e-4620-a0c1-9d9c8d02a836
        jitter_buffer:
          enable_jitter_buffer: true
          jitterbuffer_msec_max: 200
          jitterbuffer_msec_min: 60
        noise_suppression: both
        noise_suppression_details:
          attenuation_limit: 80
          engine: deep_filter_net
        onnet_t38_passthrough_enabled: true
        outbound:
          ani_override: always
          call_parking_enabled: true
          channel_limit: 10
          generate_ringback_tone: true
          instant_ringback_enabled: true
          localization: US
          outbound_voice_profile_id: '1293384261075731499'
          t38_reinvite_source: customer
        password: my123secure456password789
        rtcp_settings:
          capture_enabled: true
          port: rtcp-mux
          report_frequency_secs: 10
        sip_uri_calling_preference: disabled
        user_name: myusername123
        webhook_api_version: '1'
        webhook_event_failover_url: https://failover.example.com
        webhook_event_url: https://example.com
        webhook_timeout_secs: 25
      properties:
        active:
          description: Defaults to true
          type: boolean
        anchorsite_override:
          $ref: '#/components/schemas/AnchorsiteOverride'
        android_push_credential_id:
          $ref: '#/components/schemas/ConnectionAndroidPushCredentialId'
        call_cost_in_webhooks:
          default: false
          description: Specifies if call cost webhooks should be sent for this connection.
          type: boolean
        connection_name:
          $ref: '#/components/schemas/ConnectionName'
        default_on_hold_comfort_noise_enabled:
          default: false
          description: When enabled, Telnyx will generate comfort noise when you place the call on hold. If disabled, you will need to generate comfort noise or on hold music to avoid RTP timeout.
          type: boolean
        dtmf_type:
          $ref: '#/components/schemas/DtmfType'
        encode_contact_header_enabled:
          default: false
          description: Encode the SIP contact header sent by Telnyx to avoid issues for NAT or ALG scenarios.
          type: boolean
        encrypted_media:
          $ref: '#/components/schemas/EncryptedMedia'
        external_uac_settings:
          $ref: '#/components/schemas/UacExternalSettings'
        inbound:
          $ref: '#/components/schemas/UacInboundRequest'
        internal_uac_settings:
          $ref: '#/components/schemas/UacInternalSettings'
        ios_push_credential_id:
          $ref: '#/components/schemas/ConnectionIosPushCredentialId'
        jitter_buffer:
          $ref: '#/components/schemas/ConnectionJitterBuffer'
        noise_suppression:
          $ref: '#/components/schemas/ConnectionNoiseSuppression'
        noise_suppression_details:
          $ref: '#/components/schemas/ConnectionNoiseSuppressionDetails'
        onnet_t38_passthrough_enabled:
          default: false
          description: Enable on-net T38 if you prefer the sender and receiver negotiating T38 directly if both are on the Telnyx network. If this is disabled, Telnyx will be able to use T38 on just one leg of the call depending on each leg's settings.
          type: boolean
        outbound:
          $ref: '#/components/schemas/UacOutbound'
        password:
          description: The password to be used as part of the credentials. Must be 8 to 128 characters long.
          example: my123secure456password789
          type: string
        rtcp_settings:
          $ref: '#/components/schemas/ConnectionRtcpSettings'
        sip_uri_calling_preference:
          description: This feature enables inbound SIP URI calls to your Credential Auth Connection. If enabled for all (unrestricted) then anyone who calls the SIP URI <your-username>@telnyx.com will be connected to your Connection. You can also choose to allow only calls that are originated on any Connections under your account (internal).
          enum:
          - disabled
          - unrestricted
          - internal
          type: string
        tags:
          description: Tags associated with the connection.
          example:
          - tag1
          - tag2
          items:
            type: string
          type: array
        user_name:
          description: The user name to be used as part of the credentials. Must be 4-32 characters long and alphanumeric values only (no spaces or special characters).
          example: myusername123
          type: string
        webhook_api_version:
          default: '1'
          description: Determines which webhook format will be used, Telnyx API v1, v2 or texml. Note - texml can only be set when the outbound object parameter call_parking_enabled is included and set to true.
          enum:
          - '1'
          - '2'
          - texml
          example: '1'
          type: string
        webhook_event_failover_url:
          default: ''
          description: The failover URL where webhooks related to this connection will be sent if sending to the primary URL fails. Must include a scheme, such as 'https'.
          example: https://failover.example.com
          format: uri
          type:
          - string
          - 'null'
        webhook_event_url:
          description: The URL where webhooks related to this connection will be sent. Must include a scheme, such as 'https'.
          example: https://example.com
          format: uri
          type: string
        webhook_timeout_secs:
          default: null
          description: Specifies how many seconds to wait before timing out a webhook.
          example: 25
          maximum: 30
          minimum: 0
          type:
          - integer
          - 'null'
      required:
      - connection_name
      title: Create UAC Connection Request
      type: object
    ErrorResponse:
      properties:
        errors:
          items:
            properties:
              code:
                type: string
              detail:
                type: string
              meta:
                properties:
                  url:
                    format: uri
                    type: string
                type: object
              source:
                properties:
                  pointer:
                    type: string
                type: object
              title:
                type: string
            type: object
          type: array
      type: object
    ConnectionNoiseSuppression:
      description: Controls when noise suppression is applied to calls. When set to 'inbound', noise suppression is applied to incoming audio. When set to 'outbound', it's applied to outgoing audio. When set to 'both', it's applied in both directions. When set to 'disabled', noise suppression is turned off.
      enum:
      - inbound
      - outbound
      - both
      - disabled
      example: both
      type: string
    ConnectionAndroidPushCredentialId:
      default: null
      description: The uuid of the push credential for Android
      example: 06b09dfd-7154-4980-8b75-cebf7a9d4f8e
      title: Android Push Credential Id
      type:
      - string
      - 'null'
    Fqdn:
      example:
        connection_id: '1516447646313612565'
        created_at: '2018-02-02T22:25:27.521Z'
        dns_record_type: a
        fqdn: example.com
        id: '1293384261075731499'
        port: 5060
        record_type: fqdn
        updated_at: '2018-02-02T22:25:27.521Z'
      properties:
        connection_id:
          description: ID of the FQDN connection to which this FQDN is attached.
          type: string
        created_at:
          description: ISO 8601 formatted date indicating when the resource was created.
          example: '2018-02-02T22:25:27.521Z'
          type: string
        dns_record_type:
          description: The DNS record type for the FQDN. For cases where a port is not set, the DNS record type must be 'srv'. For cases where a port is set, the DNS record type must be 'a'. If the DNS record type is 'a' and a port is not specified, 5060 will be used.
          example: a
          type: string
        fqdn:
          description: FQDN represented by this resource.
          example: example.com
          type: string
        id:
          description: Identifies the resource.
          example: '1293384261075731499'
          type: string
          x-format: int64
        port:
          default: 5060
          description: Port to use when connecting to this FQDN.
          example: 5060
          type: integer
        record_type:
          description: Identifies the type of the resource.
          example: fqdn
          type: string
        updated_at:
          description: ISO 8601 formatted date indicating when the resource was updated.
          example: '2018-02-02T22:25:27.521Z'
          type: string
      title: Fqdn
      type: object
    UpdateUacConnectionRequest:
      description: Parameters that can be updated in a UAC connection. A UAC (User Agent Client) Connection registers Telnyx to your PBX — the opposite of a standard SIP trunk, where the PBX registers to Telnyx. Use UAC when your PBX doesn’t support outbound SIP registration or you need Telnyx to maintain the registration.
      example:
        active: true
        anchorsite_override: Latency
        android_push_credential_id: 06b09dfd-7154-4980-8b75-cebf7a9d4f8e
        call_cost_in_webhooks: false
        connection_name: my name
        default_on_hold_comfort_noise_enabled: false
        dtmf_type: RFC 2833
        encode_contact_header_enabled: true
        encrypted_media: SRTP
        external_uac_settings:
          auth_username: auth8492
          expiration_sec: 600
          from_user: '8492'
          outbound_proxy: outbound.sip-pbx.acme.example:5061
          password: testtesttest
          proxy: sip-pbx.acme.example
          transport: TLS
          username: ext8492
        inbound:
          ani_number_format: +E.164
          channel_limit: 10
          codecs:
          - G722
          dnis_number_format: +e164
          generate_ringback_tone: true
          isup_headers_enabled: true
          prack_enabled: true
          shaken_stir_enabled: true
          simultaneous_ringing: disabled
          sip_compact_headers_enabled: true
          timeout_1xx_secs: 10
          timeout_2xx_secs: 20
        internal_uac_settings:
          destination_uri: 14155550123@acme.sip.telnyx.com
        ios_push_credential_id: ec0c8e5d-439e-4620-a0c1-9d9c8d02a836
        jitter_buffer:
          enable_jitter_buffer: true
          jitterbuffer_msec_max: 200
          jitterbuffer_msec_min: 60
        noise_suppression: both
        noise_suppression_details:
          attenuation_limit: 80
          engine: deep_filter_net
        onnet_t38_passthrough_enabled: true
        outbound:
          ani_override: always
          call_parking_enabled: true
          channel_limit: 10
          generate_ringback_tone: true
          instant_ringback_enabled: true
          localization: US
          outbound_voice_profile_id: '1293384261075731499'
          t38_reinvite_source: customer
        password: my123secure456password789
        rtcp_settings:
          capture_enabled: true
          port: rtcp-mux
          report_frequency_secs: 10
        sip_uri_calling_preference: disabled
        tags:
        - tag1
        - tag2
        user_name: myusername123
        webhook_api_version: '1'
        webhook_event_failover_url: https://failover.example.com
        webhook_event_url: https://example.com
        webhook_timeout_secs: 25
      properties:
        active:
          description: Defaults to true
          type: boolean
        anchorsite_override:
          $ref: '#/components/schemas/AnchorsiteOverride'
        android_push_credential_id:
          $ref: '#/components/schemas/ConnectionAndroidPushCredentialId'
        call_cost_in_webhooks:
          default: false
          description: Specifies if call cost webhooks should be sent for this connection.
          type: boolean
        connection_name:
          $ref: '#/components/schemas/ConnectionName'
        default_on_hold_comfort_noise_enabled:
          default: false
          description: When enabled, Telnyx will generate comfort noise when you place the call on hold. If disabled, you will need to generate comfort noise or on hold music to avoid RTP timeout.
          type: boolean
        dtmf_type:
          $ref: '#/components/schemas/DtmfType'
        encode_contact_header_enabled:
          default: false
          description: Encode the SIP contact header sent by Telnyx to avoid issues for NAT or ALG scenarios.
          type: boolean
        encrypted_media:
          $ref: '#/components/schemas/EncryptedMedia'
        external_uac_settings:
          $ref: '#/components/schemas/UacExternalSettings'
        inbound:
          $ref: '#/components/schemas/UacInboundRequest'
        internal_uac_

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# Full source: https://raw.githubusercontent.com/api-evangelist/telnyx/refs/heads/main/openapi/telnyx-uac-connections-api-openapi.yml