Quote from: Taoman on July 16, 2017, 01:25:09 PM
The whole NAT SIP passthrough subject is a convoluted one with Asus routers. At one point they completely reversed the meaning of "disabled." Suggest you read the URL below plus the thread referenced in post #3. RMerlin (Eric) is currently suggesting running SIP Passthrough as "Enabled + NAT helper" which I'm doing and I'm not experiencing any VoIP issues.
Yes, SIP Passthrough should be set to "Enabled + NAT helper" with Asus Merlin. I have an RT-AC3200, and it works fine with all of my SIP services, including Anveo. RT-AC68U also works fine with SIP Passthrough set to "Enabled + NAT helper". Asuswrt-Merlin version 380.67_0 is being used.
I question whether a modem/router combo or gateway provided by the ISP is not being used in bridge mode. Ensure that it is in bridge mode in order to bypass its, potentially hidden, SIP ALG function. Also reboot devices in the following order: modem-->router (wait for Wi-Fi SSiDs to start populating)-->ATA.
Quote from: simsinThe connection to the ANVEO server cant be registered again.
That could be due to a UDP timeout issue or corrupted NAT connection.
QuoteRegister Failed: No Response From Server (server=67.212.84.21)
Using
sip.ca.anveo.com1. In your Obihai ATA or at
Obitalk.com (depending on which you use to configure your ATA), Navigate to Voice Services-->SP(Anveo) Service-->X_UserAgentPort
Change X_UserAgentPort to a random port number between 30000 and 65535.
2. Satisfy the following conditions (thanks to Mango):
UDP Unreplied Timeout (in your router) < X_KeepAliveExpires (in your ATA) < UDP Assured Timeout (in your router) < RegisterRetryInterval (in your ATA)
"<" means less than
UDP Unreplied Timeout and UDP Assured Timeout settings are found under Tools-->Other settings in Asuswrt-Merlin (in your router).
X_KeepAliveExpires is found under Voice Services-->SP(Anveo) Service-->X_KeepAliveExpires (ATA)
RegisterRetryInterval is found under Service Providers-->ITSP Profile (Anveo)-->SIP-->RegisterRetryInterval (ATA)
3. In your router, change SIP Passthrough to "Enabled + NAT helper"
4. Ensure whatever modem/router combo or gateway your ISP gave you is in bridge mode. If you don't know how to enable bridge mode, contact your ISP.
5. After making appropriate changes, save settings, and then reboot devices in the following order: modem-->router (wait for Wi-Fi SSiDs to start populating)-->ATA. Rebooting devices in this specific order should not be necessary if you did #2 properly.