diff --git a/apps/meteor/app/api/server/v1/voip/rooms.ts b/apps/meteor/app/api/server/v1/voip/rooms.ts
index a8077ab51182..498d246712a7 100644
--- a/apps/meteor/app/api/server/v1/voip/rooms.ts
+++ b/apps/meteor/app/api/server/v1/voip/rooms.ts
@@ -89,7 +89,7 @@ API.v1.addRoute(
 				token: String,
 				agentId: Match.Maybe(String),
 				rid: Match.Maybe(String),
-				direction: Match.Maybe(String),
+				direction: Match.Maybe(Match.Where((value: string) => ['inbound', 'outbound'].includes(value))),
 			};
 			check(this.queryParams, defaultCheckParams);
 
@@ -116,8 +116,8 @@ API.v1.addRoute(
 				const agent = { agentId: _id, username };
 				const rid = Random.id();
 
-				if (direction !== 'inbound' && direction !== 'outbound') {
-					return API.v1.failure('invalid-direction');
+				if (!direction) {
+					return API.v1.failure('no-direction-provided-for-new-room');
 				}
 
 				return API.v1.success(await LivechatVoip.getNewRoom(guest, agent, rid, direction, { projection: API.v1.defaultFieldsToExclude }));
diff --git a/apps/meteor/client/views/omnichannel/directory/calls/CallTable.tsx b/apps/meteor/client/views/omnichannel/directory/calls/CallTable.tsx
index 793ca4ecdb3d..f7bf171e9249 100644
--- a/apps/meteor/client/views/omnichannel/directory/calls/CallTable.tsx
+++ b/apps/meteor/client/views/omnichannel/directory/calls/CallTable.tsx
@@ -56,7 +56,7 @@ const CallTable: FC = () => {
 	const directoryRoute = useRoute('omnichannel-directory');
 
 	const resolveDirectionLabel = useCallback(
-		(direction: Partial<IVoipRoom['direction']>) => {
+		(direction: Nullable<IVoipRoom['direction']>) => {
 			if (direction === 'inbound') {
 				return t('Incoming');
 			}