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Wi-Fi calling not working over Meraki AP

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Wi-Fi calling not working over Meraki AP

I have Meraki AP's connected to Meraki switches and have two SSID's configured.  One is guest and one is internal.  The guest network is configured for NAT mode with PSK and is only filtering Video and Music, no filtering on the internal network.  We are unable to make or receive any phone calls while connected to the wireless network.

 

I thought it might be a FW issue for the internal network but the guest network is not working either and it does not use our firewall.

9 REPLIES
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Head in the Cloud

Re: Wi-Fi calling not working over Meraki AP

Doesn't sound like your blocking anything specific to the protocols Wi-Fi Calling uses.

In my experience has always been a little finicky.

Sometimes it kicks it automatically after being on the call for a few seconds, sometimes it doesn't.
If I put the phone in AirPlane mode, sometimes it works, other times it says it requires a mobile network connection.

If you try it in airplane mode, does it allow the call to initiate? This is what I do to force it (when it works that is).

Also I'm assuming you have it enabled on the phone your testing with since it needs to be manually turned on first etc.
Nolan Herring | nolanwifi.com
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Head in the Cloud

Re: Wi-Fi calling not working over Meraki AP

With phone calls you mean calls using the regular phone mechanism in cell phones right? So I assume we're talking about WiFi calling. I suppose calling works when you disable WiFi calling on the devices? Is this on Android devices or IOS devices? Are you experiencing this issue with all providers?

Here to help

Re: Wi-Fi calling not working over Meraki AP

Wi-Fi calling is enabled on their smart phones as they say it works for them at other locations.

 

I will try to place a phone in airplane mode and see what happens.

Here to help

Re: Wi-Fi calling not working over Meraki AP

Yes, Wi-Fi calling using the regular phone mechanism on the cell phones.  This specific location is located in a basement that has very poor cell phone service.  I am being told that it is both IOS and Android devices but I will confirm that.  I can't specifically say right now if it applies to all providers but I will investigate that.

Here to help

Re: Wi-Fi calling not working over Meraki AP

The problem appears to affect both Android and Apple and does not work even when the phones are placed into airplane mode.

 

Any other suggestions?

Head in the Cloud

Re: Wi-Fi calling not working over Meraki AP

Are you blocking anything on the SSID side?

What firewalls are being used for corp and guest (since you mentioned them being different).

Something is blocking it if it doesn't work at all for any device.
Nolan Herring | nolanwifi.com
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Here to help

Re: Wi-Fi calling not working over Meraki AP

The only thing being blocked on the guest network is video and music.  The firewall is a checkpoint firewall.  

 

I assumed that the guest networks traffic was tunneled past the firewall to the meraki cloud and would therefor not be subject to the firewall.  Is that not correct?

Head in the Cloud

Re: Wi-Fi calling not working over Meraki AP

That is not correct. The cloud connection is an out-of-band management connection. Your user traffic is never sent to the cloud.

Head in the Cloud

Re: Wi-Fi calling not working over Meraki AP

If the guest SSID is in NAT mode, it simply means that the AP is acting as the gateway, and will proxy. However the Internet based traffic, will still need to go out the CheckPoint firewall. If this is the only firwewall you have, then most likely, the firewall is blocking something there.

Check it to see if your blocking UDP 500 or UDP 4500
Nolan Herring | nolanwifi.com
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