The first step: click on the small map of the game below the doodle voice "small octopus" icon.
After landing the game, you can see below the small map has a small blue octopus icon, this is the Toot Voice button, please click. (as pictured)
Click on the "Small octopus" icon, will appear toot voice landing interface, at the same time the game window in the lower right corner of the "System Information" will display toot voice landing information. (as pictured)
The second step: after the landing Doodle input channel number.
After the landing toot Voice, at the top of the interface you can see the "Channel input box", where you enter the channel number you want to go, and then click the "Enter" button, or direct return to enter the channel. (as pictured)
Click "Enter" Just wait a few seconds to see the interface of the channel, you can see at the top will display the name and number of the channel. (as pictured)