# Rocket.chat - Jitsi; video calls via PC not working

**URL:** <https://forums.rocket.chat/t/rocket-chat-jitsi-video-calls-via-pc-not-working/6157>\
**Category:** Community Support\
**Created:** [March 20, 2020, 9:02pm UTC](https://forums.rocket.chat/t/rocket-chat-jitsi-video-calls-via-pc-not-working/6157 "2020-03-20T21:02:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pjsft](https://avatars.discourse-cdn.com/v4/letter/p/c67d28/32.png) [@pjsft](https://forums.rocket.chat/u/pjsft)\
**Post date:** [March 20, 2020, 9:02pm UTC](https://forums.rocket.chat/t/rocket-chat-jitsi-video-calls-via-pc-not-working/6157/1 "2020-03-20T21:02:26Z")

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Hi!  
I’m writing to you because I have a problem with Jitsi configuration.  
Jitsii is already installed. I connected it to rocket.chat.  
Calls initiated from a smartphone are established and there is no problem with connecting users via PC.  
However, it is not possible for a video call to be initiated by a person from the computer. In the Rocket.Chat conversation window, there is not even a notification that the user is starting a conversation.

Only what I observed in the logs are:

```
 jitsi-jvb[1377]: JVB 2020-03-20 12:57:05.502 WARNING: [483] org.jitsi.impl.neomedia.transform.dtls.DatagramTransportImpl.log() Unknown DTLS handshake message type: -125
 jitsi-jvb[1377]: JVB 2020-03-20 12:57:05.730 WARNING: [511] org.jitsi.videobridge.AbstractEndpointMessageTransport.log() Unable to find endpoint 02d7066c to send EndpointMessage

```

> - org.jitsi.videobridge.EndpointMessageTransport.log() No available transport channel, can’t send a message
> 
> - SEVERE: [92] org.jitsi.jicofo.discovery.DiscoveryUtil.discoverParticipantFeatures().139 Failed to discover features for [rocketchat997#token@muc.meet].jitsi/35172a01 assuming default feature set.

Do you have any idea what could be the reason that the calls started by the smartphone work, while using a PC you can only join the ongoing calls. Creating a video conference from a PC (desktop / web application) just doesn’t work.

Thanks!