Yes, there are separate configurations for the IPTV in Excitel router/ONU but those are uneditable.
The router supports some kind of different IPTV protocol, which is enabled in my case by default. It was not there in my previous router.
This is the reason why Excitel has asked me to get the new connection of Excitel since IPTV won't work with the existing customer due to non-supported IPTV routers