When you are in a call with someone and you want to add another participant:

1. Put the first call on hold and start a second call to the person you want to add to the conference. Or start a second call to another person right away - in this case the first call will be put on hold automatically (consult the chapter Making a call if you are unsure about this step).

2. Tap on the call on hold which is displayed as a bar at the top of your screen.

3. Tap on Merge all calls to start an ad-hoc conference call.

Note: You could repeat step one and two by putting the second call on hold and call a third participant. Then  tap on the bar for Calls on hold and press Merge all calls. In this case it will merge your active call with the two calls you have on hold.

4. You are now in an ad-hoc conference. Since you have started the conference you are it's host which gives you some additional options which are explained in the next section 4.2.

4. Call the selected contact. Please note that the first person is put on hold in the meantime.

5. When the selected contact picks up the call, click on Merge calls to create an ad-hoc conference.

6. You are now in an ad-hoc conference.

Once you have started a dynamic conference as a host you have the following options:

1. Tap on the options menu (three dots) of yourself.
2. Tap on the options menu (three dots) of any other participant.
3. Put the call on hold. Please be aware that this puts the whole conference on hold.
4. Mute yourself.
5. Put the conference call on speakers.
6. End the call. 
   Please be aware that this would end the conference for all participants since you are the host. If any other participant ends his call the conference woud continue.
7. Open the advanced options including emojis and options exclusice to you as the host.

If you tap the advanced options button (7 in the options overview above), you have a number of options specific to conference calls or hosting a conference call:

1. Use emojis like thumps up or applause. They will pop up next to your name and fade away over a few seconds.
2. Use the raise hand emoji. It will appear next to your name and will disappear only after you tap the emoji again.
3. Mute all participants of the conference except for you. (host only)
4. Lock the conference in order to prohibit other participants from joining. As the host you will still be able to invide new participants. (host only)
5. Transfer the call. Please note that transferring a conference call is usually not recommended. Find more details in the warning below.
6. Add other participants to the conference. (host only)

In the advanced options you will also find the options to activate your GSM calling or use your Dialpad like in every other call.

When you click on the option menu of a participant (2 in the options overview above), you can:

1. Mute the participant.
2. Exclude the participant from the conference. Please be aware that the participant can rejoin the conference unless you also lock the conference in the advanced options (4 in the last paragraph).

If you tip on the participant options from yourself (1 in the options overview above), you can:

1. Mute yourself.
2. Raise your hand (the raise hand option is also available in the advanced options menu).
3. Leave the conference (this will end the call for all the participants).

In this view, as a host, you can

1. Mute a member
2. Exclude a member (this member will no longer be a part of the conference)

Like on any other call, you can change to the video mode by tipping the camera button in the upper right-hand corner. While in a conference, the video mode is automatically displayed in gallery view.

While in video mode, you can:

• Tip again on the camera-button in the upper right-hand corner to switch back to audio mode.
• Tip on the camera button that has appeared among the options below the gallery to activate or deactivate your camera.

You still have all options described above in the paragraphs Advanced options and Options overview.

1. Once you have started a conference, you can use the + button in the upper right-hand corner to add new participants.

2. A search bar opens. Search your contacts as usual and start a call to the contact you want to add to the conference. Once the call is answered, the new participant automatically joins your conference.

If you have received an invitation link (e.g. by email), tap on the link to join the meeting. The app will automatically connect you to the meeting.

To rejoin a meeting in which you have previously participated:

1. Tap on History in the app menu at the bottom
2. Tap on a meeting you have joined before

The app will automatically connect you to the meeting.

After joining a meeting, you will initially participate in the meeting in the audio mode.

Using the icons in the bottom bar, you can:

• Put the call on hold
• Mute/unmute
• Activate/deactivate speaker
• Leave conference/End call
• Access the conference options (up arrow)

Tapping the video icon in the top right corner, you can:

• Switch to video mode

Tap on the up arrow to access the extended call actions. In this menu, as a participant, you can:

• Raise/lower hand
• Transfer call
• Access the dialpad
• Switch to GSM

Tap on the arrow to access the extended call actions. In this menu, as host, you can:

• Mute/unmute all
• Lock/unlock conference
• Lower all hands
• Raise/lower hand
• Transfer call
• Access the dialpad
• Switch to GSM

As a host, you see three dots next to participants' names and your own name.

When you click on the three dots next to your name (host), you can:

• Mute/unmute yourself
• Raise/lower hand

When you click on the three dots next to a participant's name, you can:

• Mute/unmute participant
• Exclude participant

To start the video mode:

1. Tap on the camera icon at the top right-hand corner
2. Tap on the camera icon at the bottom left-hand corner. You will have to give the app permission to access your camera.

In a 1:1 audio call, you also have an option to switch to a video call.

1. Start video by tapping on the camera icon in the top right-hand corner
2. Activate camera by tapping on the camera icon in the bottom bar

Your own video is shown in a small picture in the top right-hand corner, the other participant's video is shown as a full-size picture. Tap on the small picture to swap the videos.