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I've been having a problem with my MagicJack not working fully (the other party cannot hear me), and the tech says:
Quote: What we advice right now is to contact your Internet Service Provider/router manufacturer to request them adjust the Ping it should be less than 25ms and completely open the internal UDP ports 5060 to 5070 and disable the SIP ALG setting on the router/modem. This ports control the audio signal on the magicJack.
Does this sound right? My (Sprint) hotspot WIFI tests out at a ping of 48 ms.
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First, I'm no expert on this. But Ping is a tool that simply measures network latency (delay), so it can't be "set" to an arbitrary value. It's a result of how the network is configured. However, I don't see why it has to be under 25ms. The longer it is, the greater the chance that you might notice delays in the conversation, but it shouldn't cause one-way speech issues.
SIP uses the UDP ports that you mentioned. I don't know what "completely opening" them means. If they were blocked, SIP wouldn't work at all, otherwise it should be OK.
I found this article[^] about SIP ALG. It explains how to disable it on many different brands of routers and why you should do so. I would start by investigating that.
EDIT: With regard to the UDP ports, your ISP might limit the bandwidth provided to SIP ports. I think it's unlikely, because VoIP users should consume far less bandwidth than people streaming video, for example. But if your ISP also provides phone service, it would be a naughty (and probably illegal) way to discourage customers from using VoIP.
modified 15-Feb-21 18:18pm.
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A brick.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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What else is red, but twice as bad for your teeth?
Two bricks!
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Shark infested custard.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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A newspaper.
(For the young'uns, a newspaper was a paper product, printed daily in black & white (only!) that gave us oldsters our daily dose of news)
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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I'm going to stop there before I get to ![Elephant | [mastadon]](https://www.codeproject.com/script/Forums/Images/elephant.gif) jokes ... 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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...or a sunburned Nun.
...or a sunburned Zebra.
- I would love to change the world, but they won’t give me the source code.
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or my black greyhound Hera, who has an unfortunate fondness for laying on her back in the sun in the back yard. We have to watch and make her come in before she gets sunburnt.
Software Zen: delete this;
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Thanks for the warning, just had a root-canal treatment today which took almost two hours.
And of course on the day I had to drive to the clinic, code-red was declared and the advice was not to use the car 
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RickZeeland wrote: code-red was declared
"code-red"? I have no idea what that means.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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No, nothing todo with a nuclear attack by the Russians 
It's a warning from the Dutch meteorological institute KNMI - About KNMI[^]
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Has Dutch culture so declined that no little boy will run over and use his thumb to plug the leak in the dyke dike dyke dike (OK - I see the problem) anymore?
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Those days are long gone, now the little boys are driving around with their cars on the ice and have to be rescued after sinking through the ice
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RickZeeland wrote: have to be rescued after sinking through the ice
have to be ?
Charles Darwin would disagree.
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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word of great wisdom! 
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I recently find out Microsoft supports only OpenGL 1.2 standard by looking at its header files gl.h and glu.h installed under Windows SDK kit folders.
Amazingly, I tested several current OpenGL examples from Internet, it is working well after working with freeglut.
diligent hands rule....
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How was that murphy's law again?
If you do it well the first time, you did it wrong?  
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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The same is true of OpenMP. They only support a very old version. OpenGL and Vulkan are 3D graphics APIs that they do not really even support. If you are seriously interested in them you are better off getting the official distributions from OpenGl.org. That is, if you want a more modern version. If you want to stay at v1.2 then you don't need to.
I used to do a lot of stuff with OpenGL and that old version. Now my stuff is broken on newer generation video cards and I haven't got around to fixing it yet. I want to move everything over to Vulkan but I haven't figured out everything I need yet. You can see a couple of samples on my personal blog here.
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
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where is your blog link? thanks for your info and I would like to take a look at your samples
diligent hands rule....
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Just click on my name and it's there on my member page. There are a few links to images and stuff there.
ETA: I noticed I don't have the really fun stuff there - the robot simulators. I'll see what I can do about that. I made custom 5, 6, and 7 axis robots and their motion is simulated and can be animated. I am trying to figure out inverse kinematics so I can make them do straight moves and constrained moves.
ETA: for some reason the site has decided to stop displaying my avatar. At least, I don't see it any more. That's one of the images I made - the "swollen asterisk."
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
modified 15-Feb-21 16:28pm.
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It doesn't really matter what version Microsoft supports, it's not their turf (except in the fallback Basic Display Adapter). The "real" OpenGL implementation that you use is included in the graphics driver.
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so Microsoft implemented major function pointers that graphics card vendor can supply implementations?
diligent hands rule....
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