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.

[DeVoID]

A lot of people forget to not only have a VLAN for VoIP, but to configure the network switch for voice. I know on an HP, I just have (within config) to put in "voice" command... just putting this out there as so many people forget it.. That command does a lot of QoS and needs to be in the VLAN for VoIP.

DeVoiD

[Asta-Noor]

What is your current AP configuration for band steering and roaming (especially 5 GHz preference), and do you notice if the call drops happen when clients switch between APs or stay connected to a single one Errors and solutions of Truecaller?

[poppyplaytime]

What controller or management system are you using for the AP230s, and have you checked if there are any roaming or band-steering issues when devices switch between access points during calls?

[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?