Changes after code review

* Text improvements https://github.com/nextcloud/spreed/pull/8471#discussion_r1052558815
* Use constant instead of hardcoded value https://github.com/nextcloud/spreed/pull/8471#discussion_r1052559391

Signed-off-by: Vitor Mattos <vitor@php.rio>

docs/conversation.md

@@ -91,8 +91,8 @@
 | `participants`          | array   | v1    | v2      | **Removed**                                                                                                                                                                                                                                                                                                                                                                                       |
 | `guestList`             | string  | v1    | v2      | **Removed**                                                                                                                                                                                                                                                                                                                                                                                       |
 | `avatarUrl`             | string  | v4    |         | Avatar URL of the conversation including a version flag `v=…` for easier expiration of the avatar in case a moderator updates it, since the avatar endpoint should be cached for 24 hours.                                                                                                                                                                                                        |
-| `callStartTime`         | int     | v4    |         | Call start time                                                                                                                                                                                                                                                                                                                                                                                   |
-| `callRecording`         | int     | v4    |         | Call recording status                                                                                                                                                                                                                                                                                                                                                                             |
+| `callStartTime`         | int     | v4    |         | Timestamp when the call was started (only available with `recording-v1` capability)                                                                                                                                                                                                                                                                                                               |
+| `callRecording`         | int     | v4    |         | Type of call recording (see [Constants - Call recording status](constants.md#call-recording-status)) (only available with `recording-v1` capability)                                                                                                                                                                                                                                              |
 
 ## Creating a new conversation
 

lib/Controller/RoomController.php

@@ -399,7 +399,7 @@ class RoomController extends AEnvironmentAwareController {
 			'hasPassword' => $room->hasPassword(),
 			'hasCall' => false,
 			'callStartTime' => 0,
-			'callRecording' => 0,
+			'callRecording' => Room::RECORDING_NONE,
 			'canStartCall' => false,
 			'lastActivity' => 0,
 			'lastReadMessage' => 0,