How do I enable push notifications in NextCloud Talk

I am using Nextcloud for a quite long period. Can someone please let me know how to enable push notifications in Nextcloud talk. Because I don’t get any notifications or any kind of pop-ups when I receive a new message or an incoming call request. Enabling notifications would be quite helpful for me so that I can view the message through the pop-up notification as other chat applications work. Is there any possibility to enable push notifications on the desktop to overcome the challenges as mentioned.

Note → I use Nextcloud Enterprise Edition. I have also installed NC Client but I didn’t find any of the options related to notifications. I kindly request to let me know if there is any possibility of enabling push notifications in NC. Thanks in advance.