My Freephoneline accounts work fine using Acrobits Groundwire (smartphone app) and the Freephoneline desktop app (Windows 10).
Freephoneline doesn't proxy outbound audio. There's no need to specify outbound proxy. Stun servers introduce an additional point of failure (when they drop, so does your service).
If you're using multiple VoIP devices simultaneously, ensure they're not all using the same local SIP port and RTP port range.
If you can't hear incoming audio, then RTP packets (audio stream) aren't reaching your device.
Zoiper app uses UDP 8000 "and above":
https://www.zoiper.com/en/support/answe ... /133/Ports.
Zoiper windows app uses random UDP port range between 32000 to 65535:
https://www.zoiper.com/en/support/answe ... /116/Ports.
If the problem is a NAT firewall issue, according to their Zoiper Windows screenshot, you'd have to port forward UDP 8000 and then the entire UDP port range from 32000 to 65535 to the LAN IP
of your Windows computer. Port forwarding is a security risk and should only be attempted when all else fails.
If the problem is the RTP stream isn't even reaching your router in the first place, then the issue likely involves SIP headers (possibly RTP packets are being sent to a LAN IP instead of your WAN IP from FPL's server). I would try using voip4.freephoneline.ca:6060. I notice Zoiper has a community forum located at
https://community.zoiper.com/. You might want to contact the developer or support team and provide them with log files from Zoiper to help you troubleshoot:
https://www.zoiper.com/en/contact.
You could try using voip4.freephoneline.ca:6060. That server works fine for everyone. It has nothing to do with Rogers specifically. That server's purpose is to circumvent SIP ALG issues. DD-WRT does not have a SIP ALG feature that I'm aware of. Regardless, it may be worth trying voip4.freephoneline.ca:6060 anyway.
For testing purposes only, you may also want to try disabling IPv6 and using IPv4 only to see if that makes a difference (in the past, there were some issues involving Fongo Mobile and IPv6, but that should have been fixed by now).
Yes, there have been changes:
viewtopic.php?f=15&t=19702.
Also visit
https://status.fongo.com/.
Again, I'm not experiencing issues, but I'm not using Zoiper.
1) Have you tried your own ATA?
In your PAP2T, navigate to the SIP tab-->NAT Support Parameters, and make sure that the following settings are enabled:
a)Handle VIA received-->yes
b)Handle VIA rport-->yes
c)Substitute VIA Addr-->yes
Enabling those settings in your ATA helps to ensure RTP packets are being sent to your WAN IP instead of nowhere (your LAN IP) from FPL's servers.
2) Have you tried the Freephoneline desktop app?
If your ATA or the Freephoneline desktop app works for you, then the issue might specific to using Zoiper with Freephoneline.
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For the Freephoneline desktop app . . .
Make sure that you're not muting anything (microphone/speakers), and that you tested to ensure your mic is working before fiddling around with the app:
http://win10faq.com/fix-microphone-settings/And make sure you test incoming calls for 1-way audio issues before paying anything to FPL (you'll need a mic and headphones/speakers to test). Test on a computer that's connected to your router (without DMZ or port forwarding enabled). Should you encounter 1-way audio issues, look for a feature called SIP ALG in your router (you may need to call your ISP if you're using a modem/router combo) and disable that feature.
a.
Netgear R7000 routersUpdate firmware. Disable SIP ALG in this router. Then reboot modem, router, and ATA in that order. Then test again.
If you have a Netgear R7000 router, you may need to install third party XWRT-Vortex firmware. I recommend doing this anyway to obtain easy access to both UDP Unreplied and UDP Assured timeout settings. Afterwards, turn off the router and the ATA. Turn on the router. Wait for it to be fully up and running (including Wi-Fi). Then turn on the ATA. Download XWRT-Vortex here:
http://xvtx.ru/xwrt/download.htm. In your router, navigate to Advanced Settings–>WAN–>NAT Passthrough–>SIP Passthrough. Change SIP Passthrough to “Enabled + NAT helper.” Click “Apply.”
b.
Nettis 4422 modem from Carry Telecom (click the "Internet" tab)
http://www.carrytel.ca/support.aspxc : DSL - My VoIP phone does not work with Netis 4422 modem.
d : Please download the newest Netis firmware at
http://www.carrytel.ca/download/netis1228.zip. Unzip the netis1228.zip file and update the firmware file netis1228.img for your modem. The new firmware has been tested and working with most of Voip phone providers