Step 1: While on an active call, if you receive another call, select Hold and Answer. Your current call is placed on hold and the new call is answered. The original call remains in your call list.
Step 2: Select More
and choose Merge. Select the call you want to merge.
The original call resumes and both calls are merged into a conference call. You can view participants by selecting the Participants icon.

Figure 1: Making a conference call
Go to the Voicemail section
and select a message.
You can listen to voicemail in one of the following ways:
You can also call the person back, delete the message, or mark it as read.

Figure 2: Voicemail
Step 1: During a call, select More
and choose Hold.
The call will show as on hold in your spaces list
.
To resume the call, select it from the list and choose Resume.

Figure 3: Hold a call
Step 1: During a call, select More
and choose Transfer.
Step 2: Enter the name or number of the person you want to transfer the call to, then select Audio
.
Your original call will be placed on hold.
Step 3: Select Complete Transfer.

Figure 4: Transfer a call