# LAN VoIP doesn't work

**URL:** <https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312>\
**Category:** Platform & Builds\
**Tags:** lan, UE4-16, unreal-engine, UE4, question\
**Created:** [July 18, 2017, 2:45pm UTC](https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312 "2017-07-18T14:45:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![gMacGeorges](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gMacGeorges](https://forums.unrealengine.com/u/gMacGeorges)\
**Post date:** [July 18, 2017, 2:45pm UTC](https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312/1 "2017-07-18T14:45:29Z")

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Hi !

I’ve already made a VoIP setup on a LAN game with Unreal 4.15.  
I have created a new project from scratch with 4.16.2, but I can’t make VoIP work.  
I made the same setup, but maybe I am missing something 😕

Would you mind taking a look ?

On the DefaultEngine.ini, I got these lines :

[OnlineSubsystem]  
DefaultPlatformService=null  
bHasVoiceEnabled=true  
PollingIntervalInMs=20  
VoiceNotificationDelta=0.2

[Voice]  
bEnabled=true

On theDefaultGame.ini, I got :

[/Script/Engine.GameSession]  
bRequiresPushToTalk=false

On my Project Settings, I have a Sound Class:

 ![202611-capture+d’écran+(32).png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/2/4/7243b9e1e2207bb107d7b80cc1597b9fd8b3834a.png)

I just have created a new Sound Class, I did nothing inside it

 ![202612-capture+d’écran+(33).png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/c/2/6c2e465aca6b590fb3518cac53920b57ca586f17.png)

On windows, I have set the microphone as “Default communication device” on both computers.

When I launch the packaged game on both computers, no VoIP.

If I do a “online test voice”, I can hear my own microphone, but still not the other player…

I don’t know what to do more 😕

If someone have an idea, do not hesitate.

MacGeorges

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**Author:** ![anonymous\_user\_4230003f](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_4230003f](https://forums.unrealengine.com/u/anonymous_user_4230003f)\
**Post date:** [March 5, 2018, 12:06pm UTC](https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312/2 "2018-03-05T12:06:48Z")

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Did you ever manage to fix this?

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**Author:** ![ghost\_niner\_ch](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ghost_niner_ch/32/567167_2.png) [@ghost\_niner\_ch](https://forums.unrealengine.com/u/ghost_niner_ch)\
**Post date:** [May 26, 2021, 9:25pm UTC](https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312/3 "2021-05-26T21:25:53Z")

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@gMacGeorges Quite a while ago…still trying my luck asking you if you found a solution to that.

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<div class="post-metadata">

**Author:** ![gMacGeorges](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gMacGeorges](https://forums.unrealengine.com/u/gMacGeorges)\
**Post date:** [May 31, 2021, 10:30pm UTC](https://forums.unrealengine.com/t/lan-voip-doesnt-work/400312/4 "2021-05-31T22:30:13Z")

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@ghost_niner_ch  
Oh ■■■■ it have been a looong time. I frankly doesn’t remember. I know that I managed to make LAN VoIP working but I cannot recall if I ended up using this system or another one… Sorry