Voice SIP changing DNS causing internet to stop-FTTH

spaceboy13

I got banned!
Messages
38
Location
NA
ISP
MTNL FTTH
Few days ago, we activated the Voice feature in our MTNL FTTH. The MTNL guys did some backend work and the voice started working fine. But the Internet stopped. I looked up in the router settings and the DNS values were being taken from those mentioned in the VOICE SIP settings.

So i prompty changed the DNS settings to obtain automatically from ISP. However after sometime (24 hours) the DNS reverts to that of the voice SIP and the internet stops working after some time.

While this is not an unliveable problem , it is pretty annoying. The MTNL guys are yet to respond with a solution. Was hoping somone here could give a heads up on this if possible.

Thanks in advance.