# Transmission methods

> How to determine which channels a user is transmitting into.

Two methods are available to determine which channels a user is transmitting into:

* [`ILoginSession::GetTransmittingChannels()`](../../reference-manual/unreal/class_i_login_session) returns a ChannelId array that contains each channel you are set to transmit to.
* For any specific [`IChannelSession`](../../reference-manual/unreal/class_i_channel_session), you can check [`IChannelSession::IsTransmitting()`](../../reference-manual/unreal/class_i_channel_session), which returns true if you are transmitting into that channel.