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[Hold] / [Resume] button.
Ending One Call
User may hang up the current talking call by closing the audio channel or press [End] button. The
device will return to single call mode in holding state.
6.1.2
Join / Split Two Calls (3-way Local Conference)
In the dual call mode, user can join two calls into a conference call by pressing [Conf] button. When
two calls are joined, user can split them by pressing [Split] button.
Figure 30 - Conference Call
6.1.3
Call Transfer
When the user is talking with a remote party and wish to transfer the call to another remote party,
there are two way to transfer the call, attended and unattended.
Attended Transfer
The attended call transfer is also known as the ‘polite mode’ which is to dial through the other
remote party, wait for the remote party to answer the call and then transfer the call.
This is the same procedure as making two concurrent calls. In the dual call mode, press the [XFER]
