# cannot transfer sound if not on wifi

**URL:** <https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262>\
**Category:** mediasoup libraries\
**Created:** [September 11, 2019, 11:06am UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262 "2019-09-11T11:06:50Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![jasonkang14](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/jasonkang14/32/126_2.png) [@jasonkang14](https://mediasoup.discourse.group/u/jasonkang14)\
**Post date:** [September 19, 2019, 11:30am UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262/21 "2019-09-19T11:30:37Z")

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@ibc I changed the format to `urls` array like you have mentioned, but it still did not work. and like I have said, I tested the TURN servers that I am trying to use with `mediasoup`, and they work perfectly fine.

Did you try connecting two devices on LTE when you added React Native to `mediasoup-client` library as a supported device? Did you pass the TURN servers like I did? Or did you also use different ways to implement WebRTC connection when devices are on LTE or 3G?

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**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [September 19, 2019, 11:41am UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262/22 "2019-09-19T11:41:01Z")

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I didn’t just suggest that. In fact react-native-webrtc seems to support both url and urls as I shown in it’s code. So that’s not the problem IMHO.

No, I’ve not tested react-native with mediasoup-client lately so cannot answer that.

You may answer in the react-native-webrtc project since mediasoup-client just passed the iceServers to it verbatim.

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**Author:** ![jasonkang14](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/jasonkang14/32/126_2.png) [@jasonkang14](https://mediasoup.discourse.group/u/jasonkang14)\
**Post date:** [September 19, 2019, 12:02pm UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262/23 "2019-09-19T12:02:03Z")

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sounds good. I will try to figure it out from the react-native perspective rather than `mediasoup`.

BTW what are some benefits of becoming a sponsor for the `mediasoup` project?

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**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [September 19, 2019, 12:07pm UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262/24 "2019-09-19T12:07:28Z")

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> [@jasonkang14](#):
>
> BTW what are some benefits of becoming a sponsor for the `mediasoup` project?

It motivates us to work even harder 🙂

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**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [December 2, 2019, 11:10pm UTC](https://mediasoup.discourse.group/t/cannot-transfer-sound-if-not-on-wifi/262/25 "2019-12-02T23:10:55Z")

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