I need some advice on a grandstream wave setup. My provider is making excuses and giving me stories about security when I ask to setup the wave app. I do suspect they want to sell me a expensive firewall, so they tell me that if I do not do it on a firewall someone could call and get a super expensive bill for me.
So I try to find out what other people do, obviously other people use the Wave app to gave some field people be able to get calls transferred.
I would really be happy to get some feedback of any of you that have experience with this setup.
I do have a dynamic IP so I use noip.com, I have the Model: UCM6204.
Do you guys see it as a huge risk to not have a firewall for this?
What is the best router that maybe lets me do this securely.
I tried to talk to them, to see if we can specify the MAC address of every phone. The app is installed on 4 phones and of course I know exactly what phones they are and what ID they have. So there should be a way to ensure only these 4 phones can connect.
Any tip or shared experience would be make my day. Thank you everyone for assisting me.