VOIP Phone service no longer working after switching to Bell Fib (Giga Hub) - still works with old

[salchamp]

Hi all.

I just switched to Bell Fiber Internet and I'm having an issue with my VOIP phone service.

My phone service worked with my previous provider (and still does). But when I plug the ATA Phone Adaptor into the Bell moden, I don't get a dial tone.

This is obviously a connection issue but I've forwarded the ports to the modem i can't get a dial tone. I've even placed the Phone Adaptor in the DMZ, still no dial tone.

Is Bell blocking any ports?

I went into the Port Forward section on my old cable modem and I don't even have ports forwarded. It's so odd why the phone adaptor won't connect.

I hope someone can offer some guidance as the phone adaptor and service are in working order.

Thanks.

[salchamp]

Well...I found the solution to my own problem.

The modem was plugged into the Fiber modem - i moved the connection from the modem to an attached switch. Bam, I could ping the device and it's online with a dial tone.

Still not sure it wasn't working when directly connected to the modem. Maybe 

[salchamp · Accepted solution]

Okay, final update.

Port speed issue. Looks like I had to change the modem port speed down to 100 Mb and the two devices connected.

Actually, PINGs were dropping so I just connected the Phone Adaptor back to the network switch. There's a dial tone and I'm able to make calls.

end of story.