Wi-Fi Calling Poor Performance

[DBurritt]

Hi All,

We have 5 AP230s and we are experiencing consistently bad performance on Wi-Fi calling.  When Wi-Fi calling is enabled, it works intermittently. Calls will sometimes go through, sometimes not. Calls going out will often work for a minute and then cut out to cell. Since we have little to no cell,  the calls then drop. 

We have tried enabling voice enterprise and it seemed to improve the situation, but not remedy it. We've tried quality of service settings with voice calls as highest priority, and that also didn't remedy the issue. We have 100x100 fiber so we have a very solid connection. All of our desktop phones run over the wired network with no issues. 

Any and all suggestions are appreciated. We have about 15 people who work in the building with varying devices and they all experience this issues. 

Thank you.

[Ash_Finch · Accepted solution]

Hello,
A few ideas and a few questions!

AP Firmware version?
Are the devices static or roaming through the building when on calls? Additionally if you look at a client in client360 can you see it roam at the approx time of a call dropping?
Presuming these are mobiles that are connected to the WiFi, do you know what they're connected to (2.4 or 5GHz)? - may be worth changing to 5GHz only if possible to see if that makes a difference. 

Do you have any load balancing or band steering enabled in radio profiles? Any high utilisation of APs/Airtime/Interference observed?

[DburrittYPL]

This was an old post, thanks for all the replies. The issue was resolved, we needed stronger signal in the area. We added an additional AP for coverage and the issue resolved. 

[Asta-Noor]

While troubleshooting Wi-Fi calling issues—such as adjusting Quality of Service (QoS), enabling 802.11r/k/v (Voice Enterprise), and verifying firewall/SIP ALG settings—it's worth noting that network congestion from non-work traffic can sometimes play a role. When employees use break time to stream media or browse image-heavy creative sites, background bandwidth usage can spike. For instance, staff members browsing custom costume gallery updates or checking whether an artist's fursuit comission open can unknowingly clog Wi-Fi airtime if high-resolution media isn't throttled or separated onto a guest VLAN. Setting up dedicated SSIDs with isolated rate limits often helps prevent these personal browsing habits from impacting critical VoIP traffic.

[podcast]

Wi-Fi calling problems can be tricky because everything else on the network may appear to work normally. Along with checking roaming, QoS, and signal strength, it's worth testing different web-based tools to confirm the connection stays stable. Even something simple like using a picker wheel online can help verify that pages load smoothly and respond consistently while you're moving around the coverage area. Hopefully you identify the root cause soon!

[podcast]

Wi-Fi calling issues can be frustrating, especially when the network seems stable otherwise. Besides checking roaming, QoS, and signal strength, I also like to test with different apps to rule out device-specific problems. For entertainment testing after network changes, I've found the DixMax apks useful for streaming since it quickly reveals whether the connection remains stable during continuous playback. It can help confirm if the issue is limited to Wi-Fi calling or affects other real-time services as well. Hope you get it resolved soon!

[Asta-Noor · Accepted solution]

We have 5 AP230s and we are experiencing consistently bad performance on Wi-Fi calling. When Wi-Fi calling is enabled, it works intermittently. Calls will sometimes go through, sometimes not. Calls going out will often work for a minute and then cut out to cell. Since we have little to no cell, the calls then drop.

We have tried enabling voice enterprise and it seemed to improve the situation, but not remedy it. We've tried quality of service settings with voice calls as highest priority, and that also didn't remedy the issue. We have 100x100 fiber so we have a very solid connection. All of our desktop phones run over the wired network with no issues.

At this point, we are so out of technical ideas that we might as well spin a ruletaaleatoriagratis wheel to randomly pick which setting to tweak next!

Jokes aside, we have about 15 people who work in the building with varying devices and they all experience these issues. Any and all technical suggestions regarding SIP ALG, firewall timeouts, or specific Aerohive radio profiles would be highly appreciated. Thank you!