Short story: putting the ATA in the DMZ is the final thing that resolved the problem. I have opened a support ticket to see if there's a configuration step I'm missing where I don't have to expose the ATA in the DMZ.
Long Story below (also have submitted this as a support ticket):
I’m a new freephonline.ca VOIP unlock user
Original Problem:
When I call out or receive a call, the other user can hear me but I cannot hear them. When I call out, I don’t get any ring tones but the other user hears ringing and when they answer I cannot hear them speak.
My set-up is as follow:
ISP: Rogers
VOIP ATA: Cisco SPA 112
Modem/Router: Hitron CGN3ACR being used in gateway mode (no additional router)
My VOIP ATA is configured:
a) as described for Rogers Hitron customers, e.g. SIP Server: voip4.freephoneline.ca:6060 and all other settings described in
http://support.freephoneline.ca/entries ... redentialsb) following the CISCO SPA112 PDF guide posted in the forum
viewtopic.php?f=15&t=16206c) using the additional settings:
Handle VIA received: yes
Handle VIA rport: yes
Substitute VIA Addr: yes
d) I also asked rogers to disable the SIP ALG setting on Hitron CGN3ACR which they said they did.
Steps to resolve problem:
I performed steps a, b, and c, and d, from the above but the final thing that resolved the issue was putting the IP Address of my Cisco SPA 112 in the DMZ of my Hitron CGN3ACR. As soon as I take my ATA out of the DMZ, the original problem comes back. Is there a setting that I’m missing where I don’t have to expose my ATA and put it in the DMZ?
Other Notes:
- When I take the ATA out of the DMZ and use SIP Port: 29647 and I make a call out, I get no ring tone but the receiver does. When the receiver picks up, the receiver can hear me but I cannot hear them. But when a caller calls me, we can hear each other.
- Using voip3.freephoneline.ca didn’t work for me either. I get the same results as being on voip4.freephoneline.ca:6060