docs(calls): add transcription and closed captions across all platforms

calls/android/actions.mdx

@@ -14,12 +14,12 @@
 <Tabs>
 <Tab title="Kotlin">
 ```kotlin
 val callSession = CallSession.getInstance()
 ```
 </Tab>
 <Tab title="Java">
 ```java
 CallSession callSession = CallSession.getInstance();
 ```
 </Tab>
 </Tabs>
@@ -47,9 +47,9 @@
 </Tab>
 </Tabs>
 
 ### Unmute Audio
 
 Unmutes your local microphone, resuming audio transmission.
 
 <Tabs>
 <Tab title="Kotlin">
@@ -185,6 +185,48 @@
 </Tab>
 </Tabs>
 
+### Start Transcription
+
+*Available since v5.0.4*
+
+Begins server-side transcription of the call. This also enables the live closed captions overlay.
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+callSession.startTranscription()
+```
+</Tab>
+<Tab title="Java">
+```java
+callSession.startTranscription();
+```
+</Tab>
+</Tabs>
+
+<Warning>
+Transcription requires the feature to be enabled for your CometChat app.
+</Warning>
+
+### Stop Transcription
+
+*Available since v5.0.4*
+
+Stops the current transcription and clears any captions currently on screen. The transcript is saved and can be retrieved with [`TranscriptRequest`](/calls/android/transcription#retrieving-transcripts).
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+callSession.stopTranscription()
+```
+</Tab>
+<Tab title="Java">
+```java
+callSession.stopTranscription();
+```
+</Tab>
+</Tabs>
+
 ### Mute Participant
 
 Mutes a specific participant's audio. This is a moderator action.
@@ -340,12 +382,12 @@
 <Tabs>
 <Tab title="Kotlin">
 ```kotlin
 val isActive = callSession.isSessionActive()
 ```
 </Tab>
 <Tab title="Java">
 ```java
 boolean isActive = callSession.isSessionActive();
 ```
 </Tab>
 </Tabs>

calls/android/overview.mdx

@@ -56,6 +56,10 @@ sequenceDiagram
   Record call sessions for later playback
 </Card>
 
+<Card title="Transcription" icon="closed-captioning" href="/calls/android/transcription">
+  Transcribe calls, show live closed captions, and retrieve transcripts
+</Card>
+
 <Card title="Call Logs" icon="clock-rotate-left" href="/calls/android/call-logs">
   Retrieve call history and details
 </Card>

calls/android/session-settings.mdx

@@ -16,7 +16,7 @@
 <Tabs>
 <Tab title="Kotlin">
 ```kotlin
 val sessionSettings = CometChatCalls.SessionSettingsBuilder()
     .setTitle("Team Meeting")
     .setDisplayName("John Doe")
     .setType(SessionType.VIDEO)
@@ -28,7 +28,7 @@
 </Tab>
 <Tab title="Java">
 ```java
 SessionSettings sessionSettings = new CometChatCalls.SessionSettingsBuilder()
     .setTitle("Team Meeting")
     .setDisplayName("John Doe")
     .setType(SessionType.VIDEO)
@@ -176,7 +176,7 @@
 
 **Method:** `startAudioMuted(boolean)`
 
 Determines whether the microphone is muted when joining the session. Set to `true` to join with audio muted, requiring users to manually unmute. Useful for large meetings to prevent background noise.
 
 <Tabs>
 <Tab title="Kotlin">
@@ -326,6 +326,56 @@
 |-----------|------|---------|
 | `enabled` | boolean | false |
 
+### Auto Start Transcription
+
+*Available since v5.0.4*
+
+**Method:** `enableAutoStartTranscription(boolean)`
+
+Automatically starts transcribing the session as soon as it begins. See [Transcription](/calls/android/transcription) for details.
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+.enableAutoStartTranscription(true)
+```
+</Tab>
+<Tab title="Java">
+```java
+.enableAutoStartTranscription(true)
+```
+</Tab>
+</Tabs>
+
+| Parameter | Type | Default |
+|-----------|------|---------|
+| `enabled` | boolean | false |
+
+### Caption Language
+
+*Available since v5.0.4*
+
+**Method:** `setCaptionLanguage(String)`
+
+Sets the language used for transcription and closed captions. See [Transcription](/calls/android/transcription) for the full list of supported codes.
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+.setCaptionLanguage("en-US")
+```
+</Tab>
+<Tab title="Java">
+```java
+.setCaptionLanguage("en-US")
+```
+</Tab>
+</Tabs>
+
+| Parameter | Type | Default |
+|-----------|------|---------|
+| `captionLanguage` | String | "en-US" |
+
 ### Hide Control Panel
 
 **Method:** `hideControlPanel(boolean)`
@@ -510,6 +560,56 @@
 |-----------|------|---------|
 | `hide` | boolean | true |
 
+### Hide Transcription Button
+
+*Available since v5.0.4*
+
+**Method:** `hideTranscriptionButton(boolean)`
+
+Hides the transcription start/stop item from the control panel's **More** menu. Set to `false` to show it, allowing users to manually control session transcription.
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+.hideTranscriptionButton(false)
+```
+</Tab>
+<Tab title="Java">
+```java
+.hideTranscriptionButton(false)
+```
+</Tab>
+</Tabs>
+
+| Parameter | Type | Default |
+|-----------|------|---------|
+| `hide` | boolean | true |
+
+### Hide Closed Caption Button
+
+*Available since v5.0.4*
+
+**Method:** `hideClosedCaptionButton(boolean)`
+
+Hides the closed-caption (Show/Hide Captions) item from the control panel's **More** menu. Set to `false` to show it, allowing users to toggle the live captions overlay. Even when set to `false`, the item only appears while transcription is running.
+
+<Tabs>
+<Tab title="Kotlin">
+```kotlin
+.hideClosedCaptionButton(false)
+```
+</Tab>
+<Tab title="Java">
+```java
+.hideClosedCaptionButton(false)
+```
+</Tab>
+</Tabs>
+
+| Parameter | Type | Default |
+|-----------|------|---------|
+| `hide` | boolean | true |
+
 ### Hide Screen Sharing Button
 
 **Method:** `hideScreenSharingButton(boolean)`

calls/android/setup.mdx

@@ -29,7 +29,7 @@
 <Tabs>
 <Tab title="Groovy">
 ```groovy
 allprojects {
   repositories {
     maven {
       url "https://dl.cloudsmith.io/public/cometchat/cometchat/maven/"
@@ -40,7 +40,7 @@
 </Tab>
 <Tab title="Kotlin DSL">
 ```kotlin
 allprojects {
   repositories {
     maven {
       url = uri("https://dl.cloudsmith.io/public/cometchat/cometchat/maven/")
@@ -59,14 +59,14 @@
 <Tab title="Groovy">
 ```groovy
 dependencies {
-  implementation "com.cometchat:calls-sdk-android:5.0.0"
+  implementation "com.cometchat:calls-sdk-android:5.0.4"
 }
 ```
 </Tab>
 <Tab title="Kotlin DSL">
 ```kotlin
 dependencies {
-  implementation("com.cometchat:calls-sdk-android:5.0.0")
+  implementation("com.cometchat:calls-sdk-android:5.0.4")
 }
 ```
 </Tab>
@@ -134,8 +134,8 @@
 import com.cometchat.calls.core.CometChatCalls
 import com.cometchat.calls.core.CallAppSettings
 
 val appId = "APP_ID" // Replace with your App ID
 val region = "REGION" // Replace with your Region ("us" or "eu")
 
 val callAppSettings = CallAppSettings.CallAppSettingBuilder(appId, region).build()