Yes, sip ALG was one of the first things I disabled.

@D-C I've worked with Ooma support quite a bit on this and it works fine connected directly to my ONT fiber modem but it does not work connected to my ER605 router. Basically what looks like's...

@Nathan-TP After looking at this further I've decided that this is not an option. This is a residential network and I only have one external IP address. If I do the one to one nat mapping nothing...

@Nathan-TP I will try this later today. My biggest concern is the one to one NAT mapping in my experience is generally done with multiple external public IPs. Is this going to potentially force the...

@Nathan-TP I thought one to one Nat was to assign interior devices to an external permanent IP address.

@Nathan-TP This is not a straight up IP phone. This is an Ooma device. It is essentially a small self-contained router in and of itself. I have not set up any voice specific settings on the Omada...