Jump to content

Apparently, LG Viper does voice and data at the same time.


Duffman

Recommended Posts

I have verified that the LG Viper is capable of doing simultaneous voice and data without LTE and WiFi. I set Network Mode to CDMA/EvDo auto and made sure that Wifi was off. I called another phone and left the connection open. I was able to visit multiple websites.

 

From what I have read internally, the reason this works is because EVDO and 1xRTT operate completely independently. The chips are completely separate.

 

Pretty cool, anyway.

  • Like 5
Link to comment
Share on other sites

Awesome to know. I've always wanted voice and data to work together. :) I might have to sell something so I can get me a viper. Does anyone know if the GNex does SVDO too?

 

Sent from Joshs iPhone 3Gs using Forum Runner

Link to comment
Share on other sites

Awesome to know. I've always wanted voice and data to work together. I might have to sell something so I can get me a viper. Does anyone know if the GNex does SVDO too?

 

Sent from Joshs iPhone 3Gs using Forum Runner

 

Pretty sure the nexus uses the same chip for cdma/evdo but I will check

 

Sent from my Galaxy Nexus using Tapatalk 2

Link to comment
Share on other sites

I have verified that the LG Viper is capable of doing simultaneous voice and data without LTE and WiFi. I set Network Mode to CDMA/EvDo auto and made sure that Wifi was off. I called another phone and left the connection open. I was able to visit multiple websites.

 

From what I have read internally, the reason this works is because EVDO and 1xRTT operate completely independently. The chips are completely separate.

 

Pretty cool, anyway.

 

Yeah-- I mentioned the SVDO testing and capability of the Viper when it was FCC approved back in January. The Qualcomm S3 SoC has a CDMA baseband integrated that processes the 1x (SMS / Voice) carrier while the MDM9600's LTE/CDMA baseband handles the EVDO 3G (or LTE 4G) data duties. I'm not sure if they use separate transceivers or combine in something like a Qualcomm RTR8605 used in the Thunderbolt (which also does SVDO). As long as they have two separate baseband processors, the radio parts aren't as big of a deal.

Link to comment
Share on other sites

More battery use though?

 

The Viper shows 7 hour battery life on Sprint's website. I imagine it could be higher if SVDO wasn't there, or maybe it would stay the same.

 

Sent from Joshs iPhone 3Gs using Forum Runner

Link to comment
Share on other sites

More battery use though?

Yes-- SVDO or SVLTE does burn the battery faster, but generally these modes lower total power output to comply with the SAR testing limits. The FCC approval documents would show you under which modes / frequency combos the handset lowers the radio power in SVDO operation-- and some handsets MAY not have to. Regardless, you're powering two basebands and will use more power.

Link to comment
Share on other sites

The Viper shows 7 hour battery life on Sprint's website. I imagine it could be higher if SVDO wasn't there, or maybe it would stay the same.

 

Sent from Joshs iPhone 3Gs using Forum Runner

 

The power usage would only be greater during the SVDO operation. If you're not doing both together (like 99% of the time), the SVDO capability doesn't impact battery life.

Link to comment
Share on other sites

 

The power usage would only be greater during the SVDO operation. If you're not doing both together (like 99% of the time)' date=' the SVDO capability doesn't impact battery life.[/quote']

 

Or in bad signal areas.

 

Sent from Joshs Evo Shift using Forum Runner

Link to comment
Share on other sites

I think I should go beg a Sprint store to push up my upgrade date and get myself the Viper 4G LTE so I can use the Internet while I yak on the phone again. Of course I have to get my phone bill caught up first.

 

Sent from Joshs Evo Shift using Forum Runner

Link to comment
Share on other sites

Well, Verizon GNex does not do SVDO. I would imagine the Sprint version does not.

 

Just tried it and the sprint version does not do svdo either.

Link to comment
Share on other sites

ABI Research says that the Samsung GALAXY Nexus modem is constructed with the combination of a Via Telecom CDMA/EVDO Rev. A integrated circuit and a Samsung LTE baseband integrated circuit.

 

http://www.phonearena.com/news/Samsung-used-low-cost-chip-for-Samsung-GALAXY-Nexus_id26678

 

That explains it all.

  • Like 1
Link to comment
Share on other sites

http://www.phonearen...Y-Nexus_id26678

 

That explains it all.

 

Bummer! Good find, though. However, I give no preference to devices that do "talk and surf" at the same time. But, I do consider it an added bonus. ....thats Just my opinion... some seem to really like it. There have been just a few times where I would have been liked to use it.. but thats a few times in my 5 year smartphone history.. so, like I said, "talk and surf" wont sway my direction much in one device over another.

 

Its cool its on some of Sprints new Phones though!

Link to comment
Share on other sites

I am so ready to get this phone now. Sprint has finally allowed me a 3rd line on my account, 14 months after I opened it, and I can get the Viper from Wirefly for $20 with free activation. Who thinks I should do it?

Link to comment
Share on other sites

I am so ready to get this phone now. Sprint has finally allowed me a 3rd line on my account, 14 months after I opened it, and I can get the Viper from Wirefly for $20 with free activation. Who thinks I should do it?

 

I think its a good phone, at a great price. I actually really like this thing for some reason, whereas I typically dont even glance at anything other then flagship phones. I think it would be a serious upgrade for you, Josh, and I think you'd like it. I say jump on it! My only question is, just recently you were talking about trying to save money on your cell phone bill and considering going to a pre-paid provider... and now you want to add another line to your contract? Edit: but for 20 bucks and free activation... it is a steal.

Link to comment
Share on other sites

I think its a good phone, at a great price. I actually really like this thing for some reason, whereas I typically dont even glance at anything other then flagship phones. I think it would be a serious upgrade for you, Josh, and I think you'd like it. I say jump on it! My only question is, just recently you were talking about trying to save money on your cell phone bill and considering going to a pre-paid provider... and now you want to add another line to your contract? Edit: but for 20 bucks and free activation... it is a steal.

 

I was, but I want SVDO without going to a GSM prepaid. And if I get this, I will be cancelling my main line and paying the ETF so my bill won't go too high, or putting it on seasonal standby for 6 months for $9/mo, and re-evaluate then.

  • Like 1
Link to comment
Share on other sites

I was, but I want SVDO without going to a GSM prepaid. And if I get this, I will be cancelling my main line and paying the ETF so my bill won't go too high, or putting it on seasonal standby for 6 months for $9/mo, and re-evaluate then.

 

Sounds like a good plan! So, yea... I'd go for it.

Link to comment
Share on other sites

Sounds like a good plan! So, yea... I'd go for it.

 

Stupid Wirefly won't ship the phone to me in California unless I put the shipping address on my credit file, so it's a no go thanks to the ********. And I can't afford the $150 price tag that Sprint wants for it. :( Oh well.

Link to comment
Share on other sites

 

Or in bad signal areas.

 

Sent from Joshs Evo Shift using Forum Runner

 

Wouldn't be any different than any other phone without SVDO looking for service.

 

Sent from my Galaxy Nexus using Tapatalk 2

Link to comment
Share on other sites

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

    • Luckily, that hasn't arisen in my area where I am, aside from having B14 (well, ALL of AT&T signal) not work at all in Coosa county, Alabama. I wish there was a service for first responders that would go to ANY available carrier, provider, etc..and in the absolute worst case scenario, would give us service. I've been on an ambulance, trying to find an address, and my driver actually had to pull over and we pulled out a map book and tried to find the road using the "old fashioned way".. and that takes valuable time away that sometimes may be vital to someone surviving. BUT, I will say that I've only seen that in Coosa county... both my Tmo and AT&T phones had zero service and I couldn't get GPS, and neither could my driver (VZW service). Maybe satellite will help with that in those times where that occurs.. but that's an extreme example.     Edit to add: Let me add some context to this.. Coosa county isn't regular coverage area for my job.. so it's not a regular thing that we are dispatched to Coosa county.. and actually, there's been a change and that county now has it's own ambulance service that operates.. so the only time we might receive a request is if it's a multiple casualty scenario, or it's a transfer going home from our contracted hospital.  The way that reads above, it may seem like we are just out without some sort of GPS gadget to direct us on where to go, but for the most part, we know our coverage area pretty well. Dispatch can also give us cross streets for reference inside our coverage area (and our home county). Coosa just isn't a regular area for my job to run in. 
    • "Priority" doesn't mean "exclusivity."  When emergency services don't need B14, AT&T can use it for everyone else.  The trade-off is that when it is needed for emergency services, they not only get all of B14, but they have also arranged for priority on the rest of the AT&T network as well.  Beats having spectrum sitting unused most of the time and then not having enough when disaster strikes, as it could be without a partnership with a wireless company like AT&T. - Trip
    • I've wondered if being on the first responder plan has the priority over other 'regular' lines in the same way firstnet does (or, supposed to do with B14...I've seen normal customers on AT&T hit B14 so it's not {specifically} for Firstnet only)...  
    • T-Mobile prices people pay are all over the map. The free lines are key, so take them if ever offered again.  Your priority level would be a key factor for your price.  Only T-Mobile would know the average prices people pay.  Samsung has been offering very good deals at time of new model introductions so I have gone that route for factory unlocked, which allows me to also have a Verizon priority MVNO for when T-Mobile signal fails or I manually override.
    • I also wanted to post a speed test result.. I only do these once in a while from my home area because we are gonna be the last to see changes, like load balancing.  Right now they are digging all over the place for fiber installs, so I'm not sure what the hold-up is on making the upload speed a little more in-line with download speeds, but here is the most recent from my area:   https://www.speedtest.net/my-result/a/10133670525
  • Recently Browsing

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