Jump to content

Calling Plus (VoLTE "Lite")


Recommended Posts

You're certain it's using LTE for the call and not 1x?

 

Sent from my LG G5

Unless my Wifi figured out a way to connect itself thousands of feet away from the AP. Otherwise Yup!

 

Also confirmed a Sprint IP address, even did a speed test while on call, didn't reduce quality, its very good.

  • Like 5
Link to comment
Share on other sites

Starting with Wi-Fi making call, then dropping Wi-Fi and then using data while in call works on my LG V20 (but not with regular calls):

74250399bd47b32e89644c12b6206bd7.jpg3ce3d2f6245ec3871d5597cb20d16ee4.jpg7c2703fef91bd0b56c91b2e63ee312a5.jpgc98e4b4b3e1d88732cfe378dec7ee9ca.jpg

 

Sent from my LG-LS997 using Tapatalk

  • Like 3
Link to comment
Share on other sites

No LTE only mode on V20 (not easily) so I tried it with 3G only.  No go of course.  Drop Wi-Fi and call drops as expected.

Link to comment
Share on other sites

Besides strong b41, I tried it on weak b25 and then went to basement for b26.  Took that down to -124 before issues.  Went past  -129 and SCP showed b26 dropping.  Moved phone back to -120 and call was still there.  Had another phone in my other hand on another network. As signal problems develop the lag increases slightly to the Sprint user.  The other other network user hears slightly garbled or major dropouts of your conversation. 

 

The results while running a speed test with good signal increased the lag to up to a second as expected, but sound quality remained good.

  • Like 4
Link to comment
Share on other sites

LG G4 Wi-Fi calling no longer appears to work.  It did a few months ago.  Thus not testable by me.  This phone is one off the last firmware and not Android 7 (promised, but not in a fully tested state, by the end of the year by LG - who knows if it would make it to Sprint phones.)

 

LG G4 Wi-Fi Calling still works, just very selective about which Wi-Fi it will use.

Edited by dkyeager
Link to comment
Share on other sites

Turning wifi off while on a wifi call on the S7 and S7 edge results in a dropped call. I'm still hoping the next update will include the calling plus beta.

 

Sent from my SM-G935P using Tapatalk

  • Like 3
Link to comment
Share on other sites

The LG G5 Wi-Fi Calling worked, but turning off Wi-Fi killed the call. On latest firmware, which is one month behind the LG V20 in terms of security patches.

  • Like 1
Link to comment
Share on other sites

Turning wifi off while on a wifi call on the S7 and S7 edge results in a dropped call. I'm still hoping the next update will include the calling plus beta.

 

Sent from my SM-G935P using Tapatalk

Same for GS8+ and probably safe to assume the normal GS8 as well since they share the same software.

  • Like 1
Link to comment
Share on other sites

/So this is essentially wi-fi calling, but instead of using a wi-fi connection for data it uses LTE for data?

Sprint has changed Wi-Fi Calling to be compatible with Calling Plus (limited VoLTE) so you don't drop calls leaving Wi-Fi. It appears to need Andoid 7.x hence it likely broke the oldest Wi-Fi Calling as seen with the LG G4 which is on Android 6.x. Now uses AMR-WB codec (adaptive multi-rate - wideband) for HD Voice.

 

Thus these phones we are finding can use Calling Plus, they just can not originate Calling Plus while on LTE like the two announced devices.

 

How is the VoLTE limited? Lack of total priority over regular data along the data path is a key missing item, known as quality of service or QoS. The packet classification could be missing on the phones or all the equipment along the route does not know how to handle the type of service flag. Likely the phones lack packet classification since ToS has been around for 15 years or so.

 

A person with one of the two select phones with full Calling Plus can answer this by testing voice calls while doing a data intensive task like watching an action movie with constantly changing scenes or doing speed tests.

 

Sent from my LG-LS997 using Tapatalk

  • Like 2
Link to comment
Share on other sites

Well, according to Sprint, when having your phone set to solely Calling Plus you apparently can't get wireless alerts...

 

HOWEVER, this morning I woke up to an Amber Alert. So Sprint has entirely no clue what their own  network is capable of!  

  • Like 2
  • Haha 1
Link to comment
Share on other sites

So the public beta for iOS 11  is available now, and tested the handoff from wifi calling to lte. Does work, sounds good as well!

Link to comment
Share on other sites

  • 2 weeks later...

Has anyone heard if any other phones were added to the calling plus beta? My S7 and S7 edge both got an update today. I was hoping it was coming in this month's update, but maybe next month.

 

Sent from my SM-G935P using Tapatalk

  • Like 1
Link to comment
Share on other sites

I was in a basement today and tried making a few phone calls....started off as LTE but then dropped down to 3G. Didn't lose the call at all, but obviously couldn't use data until AFTER the call was finished. I was connected to a different tower afterward too so I am baffled by it. I know, I should have taken some screenshots....my bad. 

  • Like 5
Link to comment
Share on other sites

I was in a basement today and tried making a few phone calls....started off as LTE but then dropped down to 3G. Didn't lose the call at all, but obviously couldn't use data until AFTER the call was finished. I was connected to a different tower afterward too so I am baffled by it. I know, I should have taken some screenshots....my bad.

OH MY. Please try to recreate and grab engineering screenshots!!!

Link to comment
Share on other sites

Well, that was cool. Took call on WiFi, turned off WiFi, call continued on LTE. Surfed and talked at the same time.

I'm assuming you don't still have a Nexus 5 as it says in your profile. What phone are you using?

 

Sent from my SM-G935P using Tapatalk

Link to comment
Share on other sites

So I was back in that basement again, but my phone did an update and was left without cell service throughout the day until I left; I used my T-Mobile hotspot to get  emails, texts, and calls all day....so I used the Wifi calling and NOT Calling Plus. 

Link to comment
Share on other sites

  • 3 weeks later...

So I was back in that basement again, but my phone did an update and was left without cell service throughout the day until I left; I used my T-Mobile hotspot to get  emails, texts, and calls all day....so I used the Wifi calling and NOT Calling Plus.

 

Any chance you might end up back there again sometime soon?

Link to comment
Share on other sites

Any chance you might end up back there again sometime soon?

Unfortunately not; I finished up the work there. :( 

 

I am currently up in Binghamton NY this weekend and despite being under LTE, it seems that calls are dropping when changing bands(from 26 to 25). Very strange....apparently on my end I can still hear the person I'm talking to, but on their end my voice is digitally rastered and skips. 

Link to comment
Share on other sites

Unfortunately not; I finished up the work there. :(

 

I am currently up in Binghamton NY this weekend and despite being under LTE, it seems that calls are dropping when changing bands(from 26 to 25). Very strange....apparently on my end I can still hear the person I'm talking to, but on their end my voice is digitally rastered and skips. 

Sounds about right for Binghamton... severely overloaded sites with little capacity. I wonder if it was a bandwidth limitation on B25.

Link to comment
Share on other sites

  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • large.unreadcontent.png.6ef00db54e758d06

  • gallery_1_23_9202.png

  • Posts

    • In the conference call they had two question on additional spectrum. One was the 800 spectrum. They are not certain what will happen, thus have not really put it into their plans either way (sale or no sale). They do have a reserve level. Nationwide 800Mhz is seen as great for new technologies which I presume is IOT or 5g slices.  T-Mobile did not bite on use of their c-band or DOD.  mmWave rapidly approaching deadlines not mentioned at all. FWA brushes on this as it deals with underutilized spectrum on a sector by sector basis.  They are willing to take more money to allow FWA to be mobile (think RV or camping). Unsure if this represents a higher priority, for example, FWA Mobile in RVs in Walmart parking lots working where mobile phones need all the capacity. In terms of FWA capacity, their offload strategy is fiber through joint ventures where T-Mobile does the marketing, sales, and customer support while the fiber company does the network planning and installation.  50%-50% financial split not being consolidated into their books. I think discussion of other spectrum would have diluted the fiber joint venture discussion. They do have a fund which one use is to purchase new spectrum. Sale of the 800Mhz would go into this. It should be noted that they continue to buy 2.5Ghz spectrum from schools etc to replace leases. They will have a conference this fall  to update their overall strategies. Other notes from the call are 75% of the phones on the network are 5g. About 85% of their sites have n41, n25, and n71, 90% 5g.  93% of traffic is on midband.  SA is also adding to their performance advantage, which they figure is still ahead of other carriers by two years. It took two weeks to put the auction 108 spectrum to use at their existing sites. Mention was also made that their site spacing was designed for midrange thus no gaps in n41 coverage, while competitors was designed for lowband thus toggles back and forth for n77 also with its shorter range.  
    • The manual network selection sounds like it isn't always scanning NR, hence Dish not showing up. Your easiest way to force Dish is going to be forcing the phone into NR-only mode (*#*#4636#*#* menu?), since rainbow sims don't support SA on T-Mobile.
    • "The company’s unique multi-layer approach to 5G, with dedicated standalone 5G deployed nationwide across 600MHz, 1.9GHz, and 2.5GHz delivers customers a consistently strong experience, with 85% of 5G traffic on sites with all three spectrum bands deployed." Meanwhile they are very close to a construction deadline June 1 for 850Mhz of mmWave in most of Ohio covering 27500-28350Mhz expiring 6/8/2028. No reported sightings.  Buildout notice issue sent by FCC in March 5, 2024 https://wireless2.fcc.gov/UlsApp/letterPdf/LetterPdfController?licId=4019733&letterVersionId=178&autoLetterId=13060705&letterCode=CR&radioServiceCode=UU&op=LetterPdf&licSide=Y&archive=null&letterTo=L  No soecific permits seen in a quick check of Columbus. They also have an additional 200Mhz covering at 24350-25450 Mhz and 24950-25050Mhz with no buildout date expiring 12/11/2029.
    • T-Mobile Delivers Industry-Leading Customer, Service Revenue and Profitability Growth in Q1 2024, and Raises 2024 Guidance https://www.t-mobile.com/news/business/t-mobile-q1-2024-earnings — — — — — I find it funny that when they talk about their spectrum layers they're saying n71, n25, and n41. They're completely avoiding talking about mmWave.
    • Was true in my market. Likely means a higher percentage of 5g phones in your market.
  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...