diff --git a/src/main/java/com/vonage/client/meetings/RoomLanguage.java b/src/main/java/com/vonage/client/meetings/RoomLanguage.java
index af03fe8a5..94f7543a3 100644
--- a/src/main/java/com/vonage/client/meetings/RoomLanguage.java
+++ b/src/main/java/com/vonage/client/meetings/RoomLanguage.java
@@ -39,9 +39,19 @@ public enum RoomLanguage {
 
 	/**
 	 * Portuguese
+	 *
+	 * @deprecated Replaced by {@link #PT_BR}.
 	 */
+	@Deprecated
 	PT,
 
+	/**
+	 * Brazilian Portuguese
+	 *
+	 * @since 7.10.0
+	 */
+	PT_BR,
+
 	/**
 	 * Italian
 	 */
@@ -60,12 +70,33 @@ public enum RoomLanguage {
 	/**
 	 * German
 	 */
-	DE;
+	DE,
+
+	/**
+	 * Arabic
+	 *
+	 * @since 7.10.0
+	 */
+	AR,
+
+	/**
+	 * Chinese (Taiwan)
+	 *
+	 * @since 7.10.0
+	 */
+	ZH_TW,
+
+	/**
+	 * Chinese (Mainland)
+	 *
+	 * @since 7.10.0
+	 */
+	ZH_CN;
 
 	@JsonCreator
 	public static RoomLanguage fromString(String value) {
 		try {
-			return valueOf(value.toUpperCase());
+			return valueOf(value.toUpperCase().replace('-', '_'));
 		}
 		catch (NullPointerException | IllegalArgumentException ex) {
 			return null;
@@ -75,6 +106,6 @@ public static RoomLanguage fromString(String value) {
 	@JsonValue
 	@Override
 	public String toString() {
-		return name().toLowerCase();
+		return name().replace('_', '-');
 	}	
 }
diff --git a/src/test/java/com/vonage/client/meetings/MeetingRoomTest.java b/src/test/java/com/vonage/client/meetings/MeetingRoomTest.java
index c6a58a7a7..37e4ff39c 100644
--- a/src/test/java/com/vonage/client/meetings/MeetingRoomTest.java
+++ b/src/test/java/com/vonage/client/meetings/MeetingRoomTest.java
@@ -19,7 +19,7 @@
 import com.vonage.client.VonageResponseParseException;
 import com.vonage.client.VonageUnexpectedException;
 import static org.junit.jupiter.api.Assertions.*;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import java.net.URI;
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
@@ -292,9 +292,9 @@ public void testParseEmptyContainers() {
 		assertNull(response.getLinks().getHostUrl());
 	}
 	
-	@Test(expected = VonageUnexpectedException.class)
+	@Test
 	public void testFromJsonInvalid() {
-		MeetingRoom.fromJson("{malformed]");
+		assertThrows(VonageResponseParseException.class, () -> MeetingRoom.fromJson("{malformed]"));
 	}
 
 	@Test
@@ -324,8 +324,7 @@ public void testInvalidEnums() {
 		MeetingRoom room = MeetingRoom.fromJson(
 				"{\"join_approval_level\":\"bar\"," +
 				"\"initial_join_options\":{\"microphone_state\":\"bombastic\"}," +
-				"\"type\":\"casual\"," +
-				"\"ui_settings\":{\"language\":\"yoda\"}}"
+				"\"type\":\"casual\",\"ui_settings\":{\"language\":\"yoda\"}}"
 		);
 		assertNull(room.getJoinApprovalLevel());
 		assertNull(room.getInitialJoinOptions().getMicrophoneState());
@@ -333,11 +332,20 @@ public void testInvalidEnums() {
 		assertNull(room.getUiSettings().getLanguage());
 	}
 
-	@Test(expected = VonageUnexpectedException.class)
+	@Test
+	public void testRoomLanguageEnum() {
+		assertEquals(RoomLanguage.DE, RoomLanguage.fromString("de"));
+		assertEquals(RoomLanguage.AR, RoomLanguage.fromString("AR"));
+		assertEquals(RoomLanguage.ZH_CN, RoomLanguage.fromString("zh-CN"));
+		assertEquals("PT-BR", RoomLanguage.PT_BR.toString());
+		assertEquals("ZH-TW", RoomLanguage.ZH_TW.toString());
+	}
+
+	@Test
 	public void triggerJsonProcessingException() {
 		class SelfRefrencing extends MeetingRoom {
 			@JsonProperty("self") final SelfRefrencing self = this;
 		}
-		new SelfRefrencing().toJson();
+		assertThrows(VonageUnexpectedException.class, () -> new SelfRefrencing().toJson());
 	}
 }
\ No newline at end of file
diff --git a/src/test/java/com/vonage/client/meetings/MeetingsClientTest.java b/src/test/java/com/vonage/client/meetings/MeetingsClientTest.java
index 65b6c7002..5686572fc 100644
--- a/src/test/java/com/vonage/client/meetings/MeetingsClientTest.java
+++ b/src/test/java/com/vonage/client/meetings/MeetingsClientTest.java
@@ -845,7 +845,7 @@ protected String sampleRequestBodyString() {
 						"\"join_approval_level\":\"explicit_approval\",\"recording_options\":" +
 						"{\"auto_record\":true,\"record_only_owner\":false}," +
 						"\"initial_join_options\":{\"microphone_state\":\"off\"}," +
-						"\"ui_settings\":{\"language\":\"it\"},\"callback_urls\":" +
+						"\"ui_settings\":{\"language\":\"IT\"},\"callback_urls\":" +
 						"{\"rooms_callback_url\":\"example.com/ro\"," +
 						"\"sessions_callback_url\":\"example.com/se\"," +
 						"\"recordings_callback_url\":\"example.com/re\"}," +