def _populate_telecom_fields(segment: Segment, personal_telecom: str,
work_telecom: str, telecom_list) -> None:
for telecom in telecom_list:
telecom_type = telecom.get("use", "")
telecom_value = telecom.get("value", "")
if telecom_type in ["home", "temp", "old", "mobile", ""]:
telecom = personal_telecom
else:
telecom = work_telecom
if telecom_value:
telecom_field = Field(telecom)
telecom_field.XTN_2 = _get_telecom_use_code(telecom_type)
telecom_field.XTN_12 = telecom_value
segment.add(telecom_field)
