ADTRAN 1950859L1 User Manual

ADTRAN 1950859L1 User Manual Manual pdf 27 page image

ADTRAN IP SoftPhone User Manual Extended Calling Features61950859L1-1A Copyright © 2006 ADTRAN, Inc. 27Multiple Conference HostsAn ADTRAN IP SoftPhone conference call may include up to seven individuals – the conference host plusa participant on each of the six lines. Conference calls of more than seven parties can be accomplished byhaving multiple conference hosts.For example, one person may host six other parties (to occupy all of the available lines), with one of thoseparties being a conference of their own containing six additional parties. This would bring the total numberin the aggregate conference call to twelve. In theory, such “daisy chains” would allow for an unlimitednumber of parties in a conference call; in a real scenario, however, the number of participants would belimited by bandwidth constraints at each of the conference host’s machines, causing audio quality todegrade more and more as new participants are added. For this reason, conference participants are advisedto select lower bandwidth CODECs such as G.729 to preserve audio quality during large conference calls.Call TransferThe ADTRAN IP SoftPhone allows the transfer of an active call to a third party. There are two differenttypes of call transfer – unattended and attended.Unattended Call TransferAlso called a “blind” call transfer, this type of transfer occurs when you initiate a transfer withoutinforming the third party that a call is coming their way. Follow the steps below to perform an unattendedcall transfer:1. With an active call in progress, inform the person on the other end that they are about to betransferred to a third party, then select the XFER button (see Figure 1).2. Dial the number to which the call is to be transferred.3. Select the XFER button again to connect the original party to the third party.When a transfer is complete, the original party and the third party will be speaking to each other, and bothlines corresponding to those parties will become free for use on the transferrer’s softphone.Attended Call TransferAlso known as a “supervised” call transfer, this type of transfer occurs when, before making the transfer, auser first calls to inform the third party that a transferred call is coming their way. Follow the steps belowto perform an attended call transfer:1. With an active call in progress, select an available line (selecting a new line will automatically putthe original party on hold).2. Dial the third party and inform them that they are about to receive a call. Then press the XFERbutton (see Figure 1).3. Select the line associated with the original party to connect them to the third party.When a transfer is complete, the original party and the third party will be speaking to each other, and bothlines corresponding to those parties will become free for use on the transferrer’s softphone.