ATT Wifi Calling Ports to open

Discussion in 'iPhone' started by vtgeek, Oct 10, 2015.

  1. vtgeek macrumors member

    Sep 21, 2012
    Anyone have info on what ports and protocols need to be opened for ATT Wireless Calling to work. I know my phone is working as I have used often. But I have a location that I can't and I assume since its only a wifi router/dsl modem that its the ports/firewall.

    Thanks in advance.
  2. Europa13 macrumors 6502

    Feb 1, 2009
    Someone in another thread said AT&T tech support said to open port 4500 UDP. I tried it and it still isn't working for me on my home network. WiFi calling works for me at public WiFi hotspots and other people's houses, but not on my own network. It toggles on but never shows up. I just drove over to my local ISP and tested it on their WiFi and it did NOT work. They still insist it isn't them. I just bought a new router today and Best Buy and it still doesn't work.
  3. Eileen89 macrumors 65816

    Aug 12, 2014
    I wanted to try WiFi calling but after setting it up, found that it doesn't like my FIOS router for some reason. It goes on temporarily if I toggle Airplane mode on, but then the WiFi calling symbol goes away again. I'll have to try it at work on Monday and see if it works.

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