# Support for enable_internal_extension in External Contacts APIs

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## Added

-   New `enable_internal_extension` response field in the following **External Contacts** APIs:
    -   `GET /v2/accounts/{accountId}/phone/external_contacts/{externalContactId}`
    -   `GET /v2/phone/external_contacts/{externalContactId}`
    -   `GET /v2/phone/external_contacts`
    -   `GET /v2/accounts/{accountId}/phone/external_contacts`
-   New `enable_internal_extension` request field in the following **External Contacts** APIs:
    -   `PATCH /v2/accounts/{accountId}/phone/external_contacts/{externalContactId}`
    -   `PATCH /v2/phone/external_contacts/{externalContactId}`
    -   `POST /v2/phone/external_contacts`
    -   `POST /v2/accounts/{accountId}/phone/external_contacts`