"call in" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de call et de in."
  ],
  "forms": [
    {
      "form": "to call in",
      "tags": [
        "infinitive"
      ]
    },
    {
      "form": "calls in",
      "tags": [
        "present",
        "third-person",
        "singular"
      ]
    },
    {
      "form": "called in",
      "tags": [
        "preterite"
      ]
    },
    {
      "form": "called in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "calling in",
      "tags": [
        "participle",
        "present"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Verbes transitifs en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Faire appel à quelqu'un (un spécialiste)."
      ],
      "id": "fr-call_in-en-verb-jlOXgdnz",
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "call in"
}

{
  "categories": [
    "Compositions en anglais",
    "Locutions verbales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de call et de in."
  ],
  "forms": [
    {
      "form": "to call in",
      "tags": [
        "infinitive"
      ]
    },
    {
      "form": "calls in",
      "tags": [
        "present",
        "third-person",
        "singular"
      ]
    },
    {
      "form": "called in",
      "tags": [
        "preterite"
      ]
    },
    {
      "form": "called in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "calling in",
      "tags": [
        "participle",
        "present"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        "Verbes transitifs en anglais"
      ],
      "glosses": [
        "Faire appel à quelqu'un (un spécialiste)."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "call in"
}