OPNsense Forum

Archive => 20.7 Legacy Series => Topic started by: jeremygaither on September 02, 2020, 04:37:36 am

Title: AT&T WiFi calling on iOS drops outbound audio
Post by: jeremygaither on September 02, 2020, 04:37:36 am

On 20.7 (and perhaps prior release) I am unable to reliably use AT&T WiFi calling on iOS. I've attempted to set up static NAT rules for ports 500/4500, but outbound audio drops after a few seconds regardless of settings used. I'm also on AT&T uverse/fiber behind their residential gateway, but OPNsense has the public IP address.

Does anyone have AT&T WiFi calling working behind OPNsense, especially if they're also on AT&T u-verse or fiber? Can someone explain how one gets this working?

Title: Re: AT&T WiFi calling on iOS drops outbound audio
Post by: RFGuy_KCCO on September 02, 2020, 04:14:33 pm

I'm on 20.7 and using Wi-Fi Calling on AT&T with an iPhone XS Max and it is working great, with no issues and no special rules set up at all. However, I am using Comcast for internet, not AT&T.

Title: Re: AT&T WiFi calling on iOS drops outbound audio
Post by: jeremygaither on September 17, 2020, 07:19:11 pm

I am also having problems with Zoom dropping my outbound audio. I'm starting to suspect some UDP session or NAT mapping problems are causing both issues. Did NAT mapping change in a big way in this newest release?