Add extra calling error modal

_locales/en/messages.json

@@ -2121,6 +2121,14 @@
     "messageformat": "Removed from call",
     "description": "Title of error when in a call then a call admin removes you."
   },
+  "icu:calling__has-max-devices": {
+    "messageformat": "The maximum number of participants has been reached for this call. Try again later.",
+    "description": "Error message when joining the call that already reached the maximum number of participants"
+  },
+  "icu:calling__has-max-devices--title": {
+    "messageformat": "Call is full",
+    "description": "Title of error when joining the call that already reached the maximum number of participants"
+  },
   "icu:CallingLobby__CallLinkNotice": {
     "messageformat": "Anyone who joins this call via the link will see your name and photo.",
     "description": "Toast shown in call lobby before joining a call link call to inform user that profile info will be shared."

ts/state/ducks/calling.ts

@@ -1500,6 +1500,18 @@ function groupCallEnded(
       });
       return;
     }
+    if (endedReason === GroupCallEndReason.HasMaxDevices) {
+      const i18n = getIntl(getState());
+      dispatch({
+        type: SHOW_ERROR_MODAL,
+        payload: {
+          title: i18n('icu:calling__has-max-devices--title'),
+          description: i18n('icu:calling__has-max-devices'),
+          buttonVariant: ButtonVariant.Primary,
+        },
+      });
+      return;
+    }
 
     dispatch({ type: GROUP_CALL_ENDED, payload });
   };