I know this is an old post, but wanted add some information to help those out there struggling. I have used Merak AP's for years and WiFi calling works provided its on an SSID that does not disable LAN access. For some reason, when you create a Guest network and diallow LAN access, wifi calling does not work. Web browsing works fine in this scenario. But on my internal SSID's, WIFI calling works without issue. I have not determined why the SSID's with Deny LAN block the Wifi calling, but its most likely related to a specific port or service on the internal LAN that is blocked by default in the Deny LAN Access of the guest network. Meraki equipment is great except for their crazy lead times to get new hardware.
... View more