# Voip and wp85 with delay

**URL:** <https://forum.legato.io/t/voip-and-wp85-with-delay/2717>\
**Category:** Legato Application Framework\
**Created:** [October 16, 2017, 12:44pm UTC](https://forum.legato.io/t/voip-and-wp85-with-delay/2717 "2017-10-16T12:44:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Allyson](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@Allyson](https://forum.legato.io/u/Allyson)\
**Post date:** [October 16, 2017, 12:44pm UTC](https://forum.legato.io/t/voip-and-wp85-with-delay/2717/1 "2017-10-16T12:44:14Z")

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Hello Guys,

I’m able to write a Legato app to make real voip call.  
The audio have a delay about 2 or 3 seconds from VoIp to GSM, but in reverse, GSM to VoIp the delay is imperceptible.

Can you help me about that?

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**Author:** ![CoRfr](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/corfr/32/69_2.png) [@CoRfr](https://forum.legato.io/u/CoRfr)\
**Post date:** [October 17, 2017, 10:49pm UTC](https://forum.legato.io/t/voip-and-wp85-with-delay/2717/2 "2017-10-17T22:49:37Z")

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Hi @Allyson,

are you using the `streamMedia` sample app ([legato-af/apps/sample/streamMedia at master · legatoproject/legato-af · GitHub](https://github.com/legatoproject/legato-af/tree/master/apps/sample/streamMedia)) ?

This sample has quite a bit of delay, which is why it is advertised for streaming and not VoIP.  
If you happen to investigate to reduce the delay, please let us know your findings as to optimize this app.

Thanks!