diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca54cfcf..dc0c61eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,8 @@
   see [bitrix24AccountRepositoryInterface has problem with contract tests design - can't add flusher](https://github.com/bitrix24/b24phpsdk/issues/74).
 - Fixed error in bitrix24 account contract test data provider,
   see [incorrect data in data provider](https://github.com/bitrix24/b24phpsdk/issues/77).
+- Fixed typehints in `ActivityItemResult`, `ContactItemResult`,
+  see [wrong type hints in ActivityItemResult](https://github.com/bitrix24/b24phpsdk/issues/81)
 
 <!--
 ## Unreleased
diff --git a/src/Services/CRM/Activity/Result/ActivityItemResult.php b/src/Services/CRM/Activity/Result/ActivityItemResult.php
index 8e819f40..d45507ff 100644
--- a/src/Services/CRM/Activity/Result/ActivityItemResult.php
+++ b/src/Services/CRM/Activity/Result/ActivityItemResult.php
@@ -27,49 +27,47 @@
 /**
  * @see https://training.bitrix24.com/rest_help/crm/rest_activity/crm_activity_fields.php
  *
- * @property-read int $ID                        // Activity ID
- * @property-read int $OWNER_ID
- * @property-read string $OWNER_TYPE_ID
- * @property-read ActivityType $TYPE_ID
- * @property-read string $PROVIDER_ID
- * @property-read string $PROVIDER_TYPE_ID
- * @property-read string $PROVIDER_GROUP_ID
  * @property-read int $ASSOCIATED_ENTITY_ID      // ID of an entity associated with the activity
- * @property-read string $SUBJECT
- * @property-read string $START_TIME
- * @property-read string $END_TIME                  // Completion time
- * @property-read CarbonImmutable $DEADLINE                  // Deadline
- * @property-read boolean $COMPLETED                 // Completed
- * @property-read ActivityStatus $STATUS
- * @property-read int $RESPONSIBLE_ID
- * @property-read ActivityPriority $PRIORITY
- * @property-read ActivityNotifyType $NOTIFY_TYPE               // Notification type with crm_enum_activitynotifytype type
- * @property-read int $NOTIFY_VALUE
- * @property-read string $DESCRIPTION               // Description
- * @property-read ActivityContentType $DESCRIPTION_TYPE          // Description type with crm_enum_contenttype type
- * @property-read ActivityDirectionType $DIRECTION                 // with crm_enum_activity direction type
- * @property-read string|null $LOCATION                  // Location
+ * @property-read array $BINDINGS               // Bindings
+ * @property-read boolean $COMPLETED             // Completed
+ * @property-read array $COMMUNICATIONS          // type crm_activity_communication
  * @property-read CarbonImmutable $CREATED
- * @property-read int $AUTHOR_ID                 // Activity author ID
- * @property-read CarbonImmutable $LAST_UPDATED              // Date of the last update date
+ * @property-read CarbonImmutable $DEADLINE      // Deadline
+ * @property-read string $DESCRIPTION            // Description
+ * @property-read ActivityContentType $DESCRIPTION_TYPE // Description type with crm_enum_contenttype type
+ * @property-read ActivityDirectionType $DIRECTION // with crm_enum_activity direction type
  * @property-read int $EDITOR_ID                 // Editor
- * @property-read array $SETTINGS
+ * @property-read CarbonImmutable $END_TIME               // Completion time
+ * @property-read array $FILES                   // Added files with diskfile type
+ * @property-read int $ID                        // Activity ID
+ * @property-read boolean $IS_INCOMING_CHANNEL
+ * @property-read CarbonImmutable $LAST_UPDATED  // Date of the last update date
+ * @property-read string|null $LOCATION          // Location
+ * @property-read ActivityNotifyType $NOTIFY_TYPE
+ * @property-read int $NOTIFY_VALUE
  * @property-read string|null $ORIGIN_ID
  * @property-read string|null $ORIGINATOR_ID
- * @property-read int $RESULT_STATUS
- * @property-read int $RESULT_STREAM
- * @property-read string|null $RESULT_SOURCE_ID
- * @property-read array $PROVIDER_PARAMS
+ * @property-read int $OWNER_ID
+ * @property-read int $OWNER_TYPE_ID
+ * @property-read int $RESPONSIBLE_ID
+ * @property-read string $PROVIDER_ID
  * @property-read string|null $PROVIDER_DATA
+ * @property-read string|null $PROVIDER_GROUP_ID
+ * @property-read array $PROVIDER_PARAMS
+ * @property-read string $PROVIDER_TYPE_ID
  * @property-read int $RESULT_MARK
- * @property-read string|null $RESULT_VALUE
- * @property-read Money|null $RESULT_SUM
  * @property-read Currency|null $RESULT_CURRENCY_ID
- * @property-read int $AUTOCOMPLETE_RULE         // Autocompletion
- * @property-read string $BINDINGS                  // Bindings
- * @property-read array $COMMUNICATIONS            // type crm_activity_communication
- * @property-read array $FILES                     // Added files with diskfile type
- * @property-read string $WEBDAV_ELEMENTS
+ * @property-read int $RESULT_STATUS
+ * @property-read int $RESULT_STREAM
+ * @property-read Money|null $RESULT_SUM
+ * @property-read Money|null $RESULT_VALUE
+ * @property-read string|null $RESULT_SOURCE_ID
+ * @property-read array $SETTINGS
+ * @property-read CarbonImmutable $START_TIME
+ * @property-read ActivityStatus $STATUS
+ * @property-read string $SUBJECT
+ * @property-read ActivityType $TYPE_ID
+ * @property-read array $WEBDAV_ELEMENTS
  */
 class ActivityItemResult extends AbstractCrmItem
 {
diff --git a/src/Services/CRM/Common/Result/AbstractCrmItem.php b/src/Services/CRM/Common/Result/AbstractCrmItem.php
index e32c1934..1718488f 100644
--- a/src/Services/CRM/Common/Result/AbstractCrmItem.php
+++ b/src/Services/CRM/Common/Result/AbstractCrmItem.php
@@ -51,6 +51,7 @@ public function __get($offset)
 
         switch ($offset) {
             case 'ID':
+            case 'NOTIFY_VALUE':
             case 'ASSIGNED_BY_ID':
             case 'CONTACT_IDS':
             case 'RESPONSIBLE_ID':
@@ -85,6 +86,7 @@ public function __get($offset)
             case 'RESULT_STREAM':
             case 'LAST_ACTIVITY_BY':
             case 'ADDRESS_LOC_ADDR_ID':
+            case 'OWNER_TYPE_ID':
                 if ($this->data[$offset] !== '' && $this->data[$offset] !== null) {
                     return (int)$this->data[$offset];
                 }
@@ -114,6 +116,7 @@ public function __get($offset)
             case 'TAX_INCLUDED':
             case 'CUSTOMIZED':
             case 'COMPLETED':
+            case 'IS_INCOMING_CHANNEL':
                 return $this->data[$offset] === 'Y';
             case 'DATE_CREATE':
             case 'CREATED_DATE':
@@ -129,6 +132,8 @@ public function __get($offset)
             case 'movedTime':
             case 'lastActivityTime':
             case 'LAST_ACTIVITY_TIME':
+            case 'START_TIME':
+            case 'END_TIME':
                 if ($this->data[$offset] !== '') {
                     return CarbonImmutable::createFromFormat(DATE_ATOM, $this->data[$offset]);
                 }
@@ -140,6 +145,7 @@ public function __get($offset)
             case 'PRICE':
             case 'DISCOUNT_SUM':
             case 'RESULT_SUM':
+            case 'RESULT_VALUE':
                 if ($this->data[$offset] !== '' && $this->data[$offset] !== null) {
                     $var = $this->data[$offset] * 100;
                     return new Money((string)$var, new Currency($this->currency->getCode()));
diff --git a/src/Services/CRM/Contact/Result/ContactItemResult.php b/src/Services/CRM/Contact/Result/ContactItemResult.php
index 357de417..4ef89715 100644
--- a/src/Services/CRM/Contact/Result/ContactItemResult.php
+++ b/src/Services/CRM/Contact/Result/ContactItemResult.php
@@ -52,16 +52,16 @@
  * @property-read CarbonImmutable $LAST_ACTIVITY_TIME
  * @property-read int $LAST_ACTIVITY_BY
  * @property-read string|null $LAST_NAME
- * @property-read string|null $LINK
+ * @property-read array|null $LINK
  * @property-read int $MODIFY_BY_ID
  * @property-read string $NAME
  * @property-read string|null $ORIGIN_ID
  * @property-read string|null $ORIGINATOR_ID
  * @property-read string|null $ORIGIN_VERSION
- * @property-read string $OPENED
+ * @property-read bool $OPENED
  * @property-read Phone[] $PHONE
  * @property-read string|null $POST
- * @property-read string|null $PHOTO
+ * @property-read array|null $PHOTO
  * @property-read string|null $SECOND_NAME
  * @property-read string|null $SOURCE_DESCRIPTION
  * @property-read string|null $SOURCE_ID
diff --git a/tests/CustomAssertions/CustomBitrix24Assertions.php b/tests/CustomAssertions/CustomBitrix24Assertions.php
index 5f12030d..6fed8c47 100644
--- a/tests/CustomAssertions/CustomBitrix24Assertions.php
+++ b/tests/CustomAssertions/CustomBitrix24Assertions.php
@@ -12,8 +12,16 @@
 
 namespace Bitrix24\SDK\Tests\CustomAssertions;
 
-use Bitrix24\SDK\Services\CRM\Contact\Result\ContactItemResult;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityContentType;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityDirectionType;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityNotifyType;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityPriority;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityStatus;
+use Bitrix24\SDK\Services\CRM\Activity\ActivityType;
+use Carbon\CarbonImmutable;
 use Typhoon\Reflection\TyphoonReflector;
+use function Typhoon\Type\stringify;
+use Money\Currency;
 
 trait CustomBitrix24Assertions
 {
@@ -42,4 +50,235 @@ protected function assertBitrix24AllResultItemFieldsAnnotated(array $fieldCodesF
                 implode(', ', array_values(array_diff($fieldCodesFromApi, $propsFromAnnotations)))
             ));
     }
+
+    protected function assertBitrix24AllResultItemFieldsHasValidTypeAnnotation(array $fieldCodesFromApi, string $resultItemClassName):void
+    {
+        // parse keys from phpdoc annotation
+        $props = TyphoonReflector::build()->reflectClass($resultItemClassName)->properties();
+        $propsFromAnnotations = [];
+        foreach ($props as $meta) {
+            if ($meta->isAnnotated() && !$meta->isNative()) {
+                $propsFromAnnotations[$meta->id->name]=stringify($meta->type());
+            }
+        }
+
+        asort($propsFromAnnotations);
+        asort($fieldCodesFromApi);
+        foreach($fieldCodesFromApi as $fieldCode => $fieldData){
+            // mapping internal bitrix24 types to bitrix24 sdk types
+            switch ($fieldData['type']){
+                case 'string':
+                case 'crm_status':
+                    // if field code contains currency
+                    if(str_contains($fieldCode, 'CURRENCY_ID')){
+                        $this->assertTrue(
+                            str_contains($propsFromAnnotations[$fieldCode], Currency::class),
+                            sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                                $resultItemClassName,
+                                $fieldCode,
+                                $propsFromAnnotations[$fieldCode],
+                                $fieldData['type'],
+                                Currency::class
+                            )
+                        );
+                        break;                        
+                    }
+                    
+                    $this->assertTrue(
+                        str_contains($propsFromAnnotations[$fieldCode], 'string',),
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            'string'
+                        )
+                    );
+                    break;
+                case 'user':
+                case 'crm_enum_ownertype':
+                case 'crm_lead':
+                case 'integer':
+                    $this->assertTrue(
+                        str_contains($propsFromAnnotations[$fieldCode],'int'),
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            'int'
+                        )
+                    );
+                    break;
+                case 'double':
+                    $this->assertEquals(
+                        'Money\Money|null',
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            'Money\Money|null'
+                        )
+                    );
+                    break;
+                case 'date':
+                case 'datetime':
+                    $this->assertTrue(
+                        str_contains($propsFromAnnotations[$fieldCode],CarbonImmutable::class),
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            CarbonImmutable::class
+                        )
+                    );
+                    break;
+                case 'char':
+                    $this->assertEquals(
+                        'bool',
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            'bool'
+                        )
+                    );
+                    break;
+                case 'diskfile':
+                case 'object':
+                case 'file':
+                case 'crm_company':
+                    if(str_contains($fieldCode, '_IDS') || str_contains($fieldCode, 'PHOTO')) {
+                        $this->assertTrue(
+                            str_contains($propsFromAnnotations[$fieldCode], 'array'),
+                            sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                                $resultItemClassName,
+                                $fieldCode,
+                                $propsFromAnnotations[$fieldCode],
+                                $fieldData['type'],
+                                'array'
+                            )
+                        );
+                        break;
+                    }
+                    $this->assertTrue(
+                        str_contains($propsFromAnnotations[$fieldCode], 'int'),
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            'int'
+                        )
+                    );
+                    break;
+                case 'crm_enum_activitydirection':
+                    $this->assertEquals(
+                        ActivityDirectionType::class,
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            ActivityDirectionType::class
+                        )
+                    );
+                    break;
+                case 'crm_enum_contenttype':
+                        $this->assertEquals(
+                            ActivityContentType::class,
+                            $propsFromAnnotations[$fieldCode],
+                            sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                                $resultItemClassName,
+                                $fieldCode,
+                                $propsFromAnnotations[$fieldCode],
+                                $fieldData['type'],
+                                ActivityContentType::class
+                            )
+                        );
+                        break;
+                case 'crm_enum_activitytype':
+                    $this->assertEquals(
+                        ActivityType::class,
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            ActivityType::class
+                        )
+                    );
+                    break;
+                case 'crm_enum_activitynotifytype':
+                    $this->assertEquals(
+                        ActivityNotifyType::class,
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            ActivityNotifyType::class
+                        )
+                    );
+                    break;
+                case 'crm_enum_activitypriority':
+                    $this->assertEquals(
+                        ActivityPriority::class,
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            ActivityPriority::class
+                        )
+                    );
+                    break;
+                case 'crm_enum_activitystatus':
+                    $this->assertEquals(
+                        ActivityStatus::class,
+                        $propsFromAnnotations[$fieldCode],
+                        sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $propsFromAnnotations[$fieldCode],
+                            $fieldData['type'],
+                            ActivityStatus::class
+                        )
+                    );
+                    break;
+                case 'crm_activity_binding':
+                case 'crm_activity_communication':
+                case 'crm_multifield':
+                        $this->assertTrue(
+                            str_contains($propsFromAnnotations[$fieldCode],'array'),
+                            sprintf('class «%s» field «%s» has invalid type phpdoc annotation «%s», field type from bitrix24 is «%s», expected sdk-type «%s»',
+                                $resultItemClassName,
+                                $fieldCode,
+                                $propsFromAnnotations[$fieldCode],
+                                $fieldData['type'],
+                                'array'
+                            )
+                        );
+                    break;
+                default:
+                    $this->assertFalse(true,
+                        sprintf('class «%s» field «%s» has unknown field type from bitrix24 «%s», sdk-type from annotation «%s», fix type mapping map in integration test',
+                            $resultItemClassName,
+                            $fieldCode,
+                            $fieldData['type'],
+                            $propsFromAnnotations[$fieldCode],
+                        )
+                    );
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/tests/Integration/Services/CRM/Activity/Service/ActivityTest.php b/tests/Integration/Services/CRM/Activity/Service/ActivityTest.php
index 758717ed..7a05a2c0 100644
--- a/tests/Integration/Services/CRM/Activity/Service/ActivityTest.php
+++ b/tests/Integration/Services/CRM/Activity/Service/ActivityTest.php
@@ -21,23 +21,88 @@
 use Bitrix24\SDK\Services\CRM\Activity\Service\Activity;
 use Bitrix24\SDK\Services\CRM\Activity\ActivityType;
 use Bitrix24\SDK\Services\CRM\Contact\Service\Contact;
+use Bitrix24\SDK\Services\CRM\Deal\Result\DealItemResult;
 use Bitrix24\SDK\Services\CRM\Deal\Result\DealProductRowItemResult;
 use Bitrix24\SDK\Tests\Builders\DemoDataGenerator;
 use Bitrix24\SDK\Tests\Integration\Fabric;
+use PHPUnit\Framework\Attributes\CoversFunction;
+use PHPUnit\Framework\Attributes\CoversMethod;
+use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\TestCase;
 use Typhoon\Reflection\TyphoonReflector;
+use Bitrix24\SDK\Tests\CustomAssertions\CustomBitrix24Assertions;
+use Bitrix24\SDK\Core;
 
+#[CoversClass(Activity::class)]
+#[CoversMethod(Activity::class, 'add')]
+#[CoversMethod(Activity::class, 'delete')]
+#[CoversMethod(Activity::class, 'fields')]
+#[CoversMethod(Activity::class, 'get')]
+#[CoversMethod(Activity::class, 'list')]
+#[CoversMethod(Activity::class, 'update')]
+#[CoversMethod(Activity::class, 'countByFilter')]
 class ActivityTest extends TestCase
 {
+    use CustomBitrix24Assertions;
+
     private Activity $activityService;
     private Contact $contactService;
     private array $contactId;
     private array $activityId;
 
+    public function testAllSystemFieldsAnnotated(): void
+    {
+        $propListFromApi = (new Core\Fields\FieldsFilter())->filterSystemFields(array_keys($this->activityService->fields()->getFieldsDescription()));
+        $this->assertBitrix24AllResultItemFieldsAnnotated($propListFromApi, ActivityItemResult::class);
+    }
+
+    public function testAllSystemFieldsHasValidTypeAnnotation():void
+    {
+        $this->assertBitrix24AllResultItemFieldsHasValidTypeAnnotation(
+            $this->activityService->fields()->getFieldsDescription(),
+            ActivityItemResult::class);
+    }
+
+    /**
+     * @throws BaseException
+     * @throws TransportException
+     */
+    public function testGet(): void
+    {
+        $contactId = $this->contactService->add(['NAME' => 'test contact'])->getId();
+        $this->contactId[] = $contactId;
+
+        $newActivity = [
+            'OWNER_ID' => $contactId,
+            'OWNER_TYPE_ID' => 3,
+            'TYPE_ID' => ActivityType::call->value,
+            'PROVIDER_ID' => 'VOXIMPLANT_CALL',
+            'PROVIDER_TYPE_ID' => 'CALL',
+            'SUBJECT' => 'test activity',
+            'DESCRIPTION' => 'test activity description',
+            'DESCRIPTION_TYPE' => '1',
+            'DIRECTION' => '2',
+            'COMMUNICATIONS' => [
+                0 => [
+                    'TYPE' => 'PHONE',
+                    'VALUE' => DemoDataGenerator::getMobilePhone()->getNationalNumber(),
+                ],
+            ],
+            'RESULT_SUM' => 500,
+            'RESULT_CURRENCY_ID' => 'USD'
+        ];
+        $activityId = $this->activityService->add($newActivity)->getId();
+        $this->activityId[] = $activityId;
+
+        $activity = $this->activityService->get($activityId)->activity();
+
+        $this->assertEquals($newActivity['OWNER_ID'], $activity->OWNER_ID);
+        $this->assertEquals($newActivity['SUBJECT'], $activity->SUBJECT);
+    }
+
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers \Bitrix24\SDK\Services\CRM\Activity\Service\Activity::add
      */
     public function testAdd(): void
     {
@@ -69,7 +134,6 @@ public function testAdd(): void
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers \Bitrix24\SDK\Services\CRM\Activity\Service\Activity::delete
      */
     public function testDelete(): void
     {
@@ -110,43 +174,6 @@ public function testFields(): void
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers \Bitrix24\SDK\Services\CRM\Activity\Service\Activity::get
-     */
-    public function testGet(): void
-    {
-        $contactId = $this->contactService->add(['NAME' => 'test contact'])->getId();
-        $this->contactId[] = $contactId;
-
-        $newActivity = [
-            'OWNER_ID' => $contactId,
-            'OWNER_TYPE_ID' => 3,
-            'TYPE_ID' => ActivityType::call->value,
-            'PROVIDER_ID' => 'VOXIMPLANT_CALL',
-            'PROVIDER_TYPE_ID' => 'CALL',
-            'SUBJECT' => 'test activity',
-            'DESCRIPTION' => 'test activity description',
-            'DESCRIPTION_TYPE' => '1',
-            'DIRECTION' => '2',
-            'COMMUNICATIONS' => [
-                0 => [
-                    'TYPE' => 'PHONE',
-                    'VALUE' => DemoDataGenerator::getMobilePhone()->getNationalNumber(),
-                ],
-            ],
-        ];
-        $activityId = $this->activityService->add($newActivity)->getId();
-        $this->activityId[] = $activityId;
-
-        $activity = $this->activityService->get($activityId)->activity();
-
-        $this->assertEquals($newActivity['OWNER_ID'], $activity->OWNER_ID);
-        $this->assertEquals($newActivity['SUBJECT'], $activity->SUBJECT);
-    }
-
-    /**
-     * @throws BaseException
-     * @throws TransportException
-     * @covers \Bitrix24\SDK\Services\CRM\Activity\Service\Activity::list
      */
     public function testList(): void
     {
@@ -183,13 +210,14 @@ public function testList(): void
             ["*", "COMMUNICATIONS"],
             0
         );
-        $this->assertEquals(count($newActivity), count($res->getActivities()));
+
+
+      $this->assertEquals(count($newActivity), count($res->getActivities()));
     }
 
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers \Bitrix24\SDK\Services\CRM\Activity\Service\Activity::update
      */
     public function testUpdate(): void
     {
diff --git a/tests/Integration/Services/CRM/Contact/Service/ContactTest.php b/tests/Integration/Services/CRM/Contact/Service/ContactTest.php
index 425fe881..a24da1f4 100644
--- a/tests/Integration/Services/CRM/Contact/Service/ContactTest.php
+++ b/tests/Integration/Services/CRM/Contact/Service/ContactTest.php
@@ -15,6 +15,7 @@
 
 use Bitrix24\SDK\Core\Exceptions\BaseException;
 use Bitrix24\SDK\Core\Exceptions\TransportException;
+use Bitrix24\SDK\Services\CRM\Activity\Result\ActivityItemResult;
 use Bitrix24\SDK\Services\CRM\Common\Result\SystemFields\Types\EmailValueType;
 use Bitrix24\SDK\Services\CRM\Common\Result\SystemFields\Types\InstantMessengerValueType;
 use Bitrix24\SDK\Services\CRM\Common\Result\SystemFields\Types\PhoneValueType;
@@ -23,6 +24,8 @@
 use Bitrix24\SDK\Services\CRM\Contact\Service\Contact;
 use Bitrix24\SDK\Tests\CustomAssertions\CustomBitrix24Assertions;
 use Bitrix24\SDK\Tests\Integration\Fabric;
+use PHPUnit\Framework\Attributes\CoversFunction;
+use PHPUnit\Framework\Attributes\CoversMethod;
 use PHPUnit\Framework\TestCase;
 use Bitrix24\SDK\Core;
 use Faker;
@@ -32,6 +35,12 @@
  *
  * @package Bitrix24\SDK\Tests\Integration\Services\CRM\Contact\Service
  */
+#[CoversMethod(Contact::class,'add')]
+#[CoversMethod(Contact::class,'delete')]
+#[CoversMethod(Contact::class,'fields')]
+#[CoversMethod(Contact::class,'get')]
+#[CoversMethod(Contact::class,'list')]
+#[CoversMethod(Contact::class,'update')]
 class ContactTest extends TestCase
 {
     use CustomBitrix24Assertions;
@@ -42,8 +51,8 @@ class ContactTest extends TestCase
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers Contact::add
      */
+
     public function testAdd(): void
     {
         self::assertGreaterThanOrEqual(1, $this->contactService->add(['NAME' => 'test contact'])->getId());
@@ -52,7 +61,6 @@ public function testAdd(): void
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers Contact::delete
      */
     public function testDelete(): void
     {
@@ -60,7 +68,6 @@ public function testDelete(): void
     }
 
     /**
-     * @covers Contact::fields
      * @throws BaseException
      * @throws TransportException
      */
@@ -75,10 +82,26 @@ public function testAllSystemFieldsAnnotated(): void
         $this->assertBitrix24AllResultItemFieldsAnnotated($propListFromApi, ContactItemResult::class);
     }
 
+    /**
+     * @throws TransportException
+     * @throws BaseException
+     */
+    public function testAllSystemFieldsHasValidTypeAnnotation():void
+    {
+        $allFields = $this->contactService->fields()->getFieldsDescription();
+        $systemFieldsCodes = (new Core\Fields\FieldsFilter())->filterSystemFields(array_keys($allFields));
+        $systemFields = array_filter($allFields, static function ($code) use ($systemFieldsCodes) {
+            return in_array($code, $systemFieldsCodes, true);
+        }, ARRAY_FILTER_USE_KEY);
+
+        $this->assertBitrix24AllResultItemFieldsHasValidTypeAnnotation(
+            $systemFields,
+            ContactItemResult::class);
+    }
+
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers Contact::get
      */
     public function testGet(): void
     {
@@ -91,7 +114,6 @@ public function testGet(): void
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers Contact::list
      */
     public function testList(): void
     {
@@ -102,7 +124,6 @@ public function testList(): void
     /**
      * @throws BaseException
      * @throws TransportException
-     * @covers Contact::update
      */
     public function testUpdate(): void
     {
@@ -138,8 +159,6 @@ public function testCountByFilter(): void
 
     /**
      * @return void
-     * @covers Contact::get
-     * @covers Contact::add
      * @throws Core\Exceptions\TransportException
      * @throws Core\Exceptions\BaseException
      */
@@ -161,8 +180,6 @@ public function testGetEmail(): void
 
     /**
      * @return void
-     * @covers Contact::get
-     * @covers Contact::add
      * @throws Core\Exceptions\TransportException
      * @throws Core\Exceptions\BaseException
      */
@@ -184,8 +201,6 @@ public function testGetPhone(): void
 
     /**
      * @return void
-     * @covers Contact::get
-     * @covers Contact::add
      * @throws Core\Exceptions\TransportException
      * @throws Core\Exceptions\BaseException
      */
@@ -207,8 +222,6 @@ public function testGetInstantMessenger(): void
 
     /**
      * @return void
-     * @covers Contact::get
-     * @covers Contact::add
      * @throws Core\Exceptions\TransportException
      * @throws Core\Exceptions\BaseException
      */