I don’t know if anyone has already posted information about wifi calling, so I thought it would be good to add this. In the last 2 weeks, I posted on the sprint.com forum and the Sprint reps were unable to answer the simple question of what port does wifi calling use. Previous to posting I called customer service and Airrave support and no one could answer either. I didn’t expect a detailed answer, but they could have called someone who knew the answer. Anyway, two very knowledgeable users on the forum narrowed things down, and wifi calling uses UDP port 4500. I had already narrowed down the ports to a handful, since I found information on the web about TMobile’s similar wifi calling. Also, I found a netstat option built into my Asus RT-AC66U router that was helpful for looking at ip/ports for our phones. The Sprint server the wifi calling traffic heads to is 68-31-26-1.pools.spcsdns.net The reason I started asking about the port and connectivity is because we experienced many calls that would either drop or when you called someone it would go silent during the call. This goes along with UDP traffic being connectionless and sensitive to any disruption. I prioritized traffic for our GS4T and GS5 phones for port 4500 and found there was a firmware updated from Asus for the router that helped. Also, I skimmed over (on some other android forums) the updates for the GS5 to android 4.4.4 and I noticed something with wifi calling bug fixes. I am happy to say that the wifi calling is working a lot better now.
So, we all know about the lovely iPhone 6 and iPhone 6 Plus User thread, and there are many different device focused threads across S4GRU, but there are none for us older iPhone users. So, why should they get to have all the fun? This thread is dedicated to anything and everything about our beautiful (Spark-less) iPhone 5's and 5S's.
Discuss anything like jailbreaks, hardware problems, how much you love your device, how great it is to have at least one LTE band compared to the folks who still have 4's and 4S's, ask questions and maybe you can get some answers, etc. etc.
I know someone on here might be able to help, but I have a Sprint iPad mini (1st gen) and I have been swapping between my Sprint SIM card that came with the device and a TMobile SIM. This past time when I reinstalled the Sprint SIM I was able to purchase data, but then the reprovisioning kept failing. I cannot use the data. I tried resetting the iPad completely, and that did not work. I restored the iPad as new and that also did not work. I also noticed that the iPad kept going from Sprint 3G to 1x over and over, even in an area with full LTE. I called Sprint support and they said that they could not handle anything prepaid (which was shocking), but when I pushed a bit on them, they helped troubleshoot. Still, nothing has worked. I will call Apple this evening if nothing else, but I am traveling for Memorial Day, so it would have been nice to have extra data on the iPad. Anyways, does anyone have any thoughts? I am thinking it may be a hardware issue, but it does not appear to be a SIM card issue. Still in the car on a long trip from NYC to Ohio for a wedding reception and visiting the in-laws.
Just to chime in, I find the Magic Box very useful in my home because we have home internet that goes out at least once a week, and therefore need a backup plan for those times when the internet is out. It gives me reliable internet access when the home ISP goes down. Plus, when connected to a UPS, I also have usable internet for news and emergency updates in the event of a power outage, which happens often during storms. I go from being on 1 bar of B26 to 4 bars of B41, with the box being connected to a B41 site that I otherwise don't have access to in or around my home.
Also a small benefit is having full signal all the time without my device constantly switching between weak B26 and 3G. The battery life savings really add up. Plus being able to make VoLTE phone calls from my home when VoLTE is rolled out will be nice too. All of these are things that WiFi cannot do. Sure, a lot of these problems have solutions or workarounds, all of which require more time, effort and, more importantly, money, than a box that you simply connect to power and never touch again. It almost works like... magic?