2 degrees wifi calling not working RESOLVED

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Mahon

473 posts

Ultimate Geek

#2615478 3-Dec-2020 11:44

I believe you are correct. However, I went into the 2 degrees shop today and switched to their wifi and wifi calling lit up and worked. Got home and when my wifi kicked in so did wifi calling. Rather weird really...something is fickle, but at least I have a working phone again.

Mahon

473 posts

Ultimate Geek

#2616228 4-Dec-2020 10:24

Wifi Calling still going strong. Thanks to those that responded.

orangegreen

10 posts

Wannabe Geek

#2616701 5-Dec-2020 15:07

Mahon:
My Wifi calling has been working flawlessly until a few days ago when it has totally stopped. Iphone 12 with Fritzbox 7490. Obviously 2 degrees broadband and cellular. It has been working on iphone 12.

Restarted everything to no avail

Put in a service call yesterday to no avail. They checked router settings and said it was fine. I do need wifi calling on due to pitiful cellular reception in my street.

Something else that has happened recently (not that I use it much at all), access to piratebay has been blocked somehow. I thought it may have been ISP, but a friend in Auckland on 2 degres fibre has no issues. This is not a real concern for me, as the wifi calling is key.

Should I reset router to factory settings?

Just not sure what to do, as it could be the router (which is a few tears old now) or could even be a recent iphone software update. 2 degrees doesnt seem overly interested as I am assuming it could well be something outside their control. I did try what the above poster suggested, but it didnt help.

In one way you are correct, normal situations should not require this. However, I have an IT housemate who has severely restricted the firewall and at the same time is was uninterested in helping me (I need Wi-Fi calling for work). Basically all ports above something like 1140 were restricted (probably got incorrect lingo here). Opening port 4500 meant Wi-Fi calling worked, but intermittently went. Now the dns server is 8.8.8.8 it works all the time. I think maybe a contributing factor too is our modem also functions as a router.

sbiddle

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Biddle Corp

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#2616744 5-Dec-2020 18:19

It's simply not possible that changing your DNS server from your RSP server to Google can suddenly make WiFi calling work. What it will do is make browsing performance less snappy due to all DNS lookups now being much further away.

orangegreen

10 posts

Wannabe Geek

#2617384 7-Dec-2020 10:46

sbiddle:
It's simply not possible that changing your DNS server from your RSP server to Google can suddenly make WiFi calling work. What it will do is make browsing performance less snappy due to all DNS lookups now being much further away.

Ok fair enough. I can only say that the little icon top left that says no service changed to Wi-Fi calling the minute I changed the dns. I had been experiencing ‘no service’ frequently and had to keep toggling airplane mode on and off to get it to say wificalling. And since changing it a few days ago the wificalling icon has been steadfast.

orangegreen

10 posts

Wannabe Geek

#2617437 7-Dec-2020 11:47

orangegreen:
sbiddle:
It's simply not possible that changing your DNS server from your RSP server to Google can suddenly make WiFi calling work. What it will do is make browsing performance less snappy due to all DNS lookups now being much further away.

Ok fair enough. I can only say that the little icon top left that says no service changed to Wi-Fi calling the minute I changed the dns. I had been experiencing ‘no service’ frequently and had to keep toggling airplane mode on and off to get it to say wificalling. And since changing it a few days ago the wificalling icon has been steadfast.

Also, I just tried to replicate the problem. I deleted the dns server 8.8.8.8 then turned Wi-Fi on and off. Now it says no service instead of wificalling. I then put the dns back to manual, added 8.8.8.8 then turned Wi-Fi off and on, and badaboom, it says Wi-Fi calling again. I obviously not an IT expert like yourself, just someone trying to get service so I can do my job. If the two are not linked, what is the explanation for why changing the dns server has an effect on giving me wificalling service?

SaltyNZ

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2degrees

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#2617441 7-Dec-2020 12:04

orangegreen:Also, I just tried to replicate the problem. I deleted the dns server 8.8.8.8 then turned Wi-Fi on and off. Now it says no service instead of wificalling. I then put the dns back to manual, added 8.8.8.8 then turned Wi-Fi off and on, and badaboom, it says Wi-Fi calling again. I obviously not an IT expert like yourself, just someone trying to get service so I can do my job. If the two are not linked, what is the explanation for why changing the dns server has an effect on giving me wificalling service?

I think it more goes to show that there's a problem with the general configuration of your home network rather than that using that specific DNS server is the fix for the issue. 2degrees doesn't block some DNS servers from resolving the hostname for the VoWifi gateway while allowing others.

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These comments are my own and do not represent the opinions of 2degrees.

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Linux

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#2617442 7-Dec-2020 12:07

100% a home network setup issue

freitasm

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Geekzone

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#2617444 7-Dec-2020 12:08

What happens if you edit your router configuration and use 8.8.8.8 (or 1.1.1.1) as the DNS for your whole network? And what happens if you check the box to use the ISP default?

kingdragonfly

11203 posts

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#2627081 27-Dec-2020 08:05

This post just to help people find this thread. It looks like it's only 2Degrees (and possibly The Warehouse)

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2Degrees

What is WiFi Calling?
WiFi Calling (sometimes called VoWiFi) allows you to make and receive calls, texts and multimedia messages anywhere in the world using a suitable WiFi connection, even if there is no mobile coverage.

You can use WiFi Calling any time that your phone has a WiFi signal. It’s a great option if you have dodgy mobile reception, limited minutes, or if you’re travelling overseas.

...On iPhones, once you update your software you should get a message called Service Provider Settings Update. If it doesn’t pop up straight away, go to Settings, then General, then About which should trigger it.

It's super easy to activate WiFi Calling on your device when it's supported by your model.

1. Enable WiFi Calling in device settings

Go to your phone Settings where you’ll be able to toggle WiFi Calling on. On the Samsung Galaxy devices, go to the Connections tab in your Phone Settings.

2. Connect to WiFi and get talking.

Wifi calling

On your Samsung phone, you’ll know WiFi Calling is activated when you see a small icon of a phone with radio waves pop up in the notification bar at the top of the screen.

On your iPhone you’ll see 2degrees WiFi Calling at the top left of your screen, or on an iPhone X, these words will appear in the Control Centre (swipe down from the top right of the screen).

If you can't connect, try restarting your phone and if for any reason WiFi Calling isn’t doing what you expect, you can go back to your phone settings and turn it off.

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From Wikipedia

Generic Access Network

"...Allows mobile phones to use Wi-Fi networks to connect calls, in place of conventional cell towers.

This can be useful in locations with poor cell coverage where some other form of internet access is available, especially at the home or office.

The system offers seamless handoff, so the user can move from cell to WiFi and back again with the same invisibility that the cell network offers when moving from tower to tower."

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From Apple:

Wi-Fi Calling

UDP ports: 500, 4500

(Note that Apple doesn't mention port 143, but may be needed)

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From AT&T Wi-Fi Calling LAN and VPN configuration

LAN/VPN router configurations required to communicate with the AT&T network
To use AT&T Wi-Fi Calling, your device must be able to communicate with the AT&T network. In some cases in order to communicate effectively you may need to change your router settings. If you have a simple router configuration that has not been customized, you may not have to make any changes to your settings.

If the router’s configuration has been updated or you’re using a firewall you may have to update the router setting to support AT&T Wi-Fi Calling.

Internet Protocol Security (IPSec) must be allowed

Internet Protocol Security is a method of encrypting traffic sent through the Internet. It is used to provide a secure voice and data communication path. Some routers permit IPSec messages to be blocked. AT&T Wi-Fi Calling requires IPSec pass-through to be allowed.

Data ports must be open

Routers can be set to block traffic using certain ports. Ports 500, 4500, and 143 as shown in the table below are used to communicate to the AT&T network and must be open. Port blocking is sometimes implemented in the form of access lists.

Data ports

500 UDP
4500 UDP
143 TCP

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Just some text to help Google searches

New Zealand, NZ, iPhone, Samsung, Wi-Fi Calling, VoWiFi, Poor cellphone coverage, Poor cell phone coverage, poor mobile coverage, poor mobile phone coverage, no cellphone coverage, no cell phone coverage, no mobile coverage, no mobile phone coverage, mobile phones, dead zones, Vodafone, Sure Signal, VoIP, Femtocell

SaltyNZ

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2degrees

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#2627105 27-Dec-2020 10:05

FYI, the 2degrees Wifi Calling feature is not an implementation of GAN. Although there are similarities, VoWifi is much more closely related to VoLTE - the difference being that VoLTE works on the (trusted) LTE RAN for access, whereas VoWifi features an IPSec gateway instead. In both cases voice services are handled by IMS for an end to end VoIP service. GAN integrates to the old-style circuit switched core so only the leg between the handset and the access gateway is a packet service.

iPad Pro 11" + iPhone 15 Pro Max + 2degrees 4tw!

These comments are my own and do not represent the opinions of 2degrees.

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