Call Transfer (Blind, Attended, Semi-Attended, Drag-and-Drop, BLF/DSS)


Types of Call Transfer


You can transfer a call on the Yealink SIP-T58A in three ways:


  • Blind Transfer: Transfer a call directly to another party without consulting.

  • Semi-Attended Transfer: Transfer a call when the target phone is ringing.

  • Attended Transfer: Transfer a call with prior consulting.

All three ways can be performed using either the transfer key (physical or soft), a DSS key, or a BLF key.

A fast Blind transfer can also be performed with drag-and-drop convenience. 


Another transfer method, using a Telebroad system dial code, allows you to transfer a call directly to a voicemail of your choice.

Transferring Calls with the Transfer Key


An active call can be transferred to a number, a local contact, a number from a  call history record, or a contact from a remote phone book.  


To transfer a call:


  • Press    or the Transfer soft key during a call.
  • Enter a phone number to transfer the call to or do one of the following:

  • Select   and select the desired contact.

  • Select   and select the desired Call History entry.

  • For a blind transfer – select Transfer when prompted with the dialog box.

    The call will automatically dial out in about 5 seconds if you do not select Transfer, resulting in an attended/semi-attended transfer.



  • For an attended/semi-attended transfer  select Send when prompted with the dialog box.



    • Press    or  the Transfer soft key when receiving a ringback to complete a semi-attended transfer.

    • After the party answers the call, press   or the Transfer soft key to complete an attended transfer.

If you are using a handset, an attended/semi-attended transfer can be completed by hanging up the handset.

You can cancel the transfer before the call is connected by pressing the Cancel soft key.


Drag-and-Drop Blind Transfer


Besides transferring a call with the transfer key, you can also perform a fast blind transfer with drag-and-drop convenience. 


To perform a drag-and-drop do one of the following:

  • During an active call, drag the active call window to an available speed dial or BLF key to transfer the call to its associated contact.



  • When there is an active call and one or more calls on hold, drag the active call window to a held call and tap Transfer. The active call is connected to the number of the held party.

Transferring Calls with a BLF or DSS Key


Transferring a call with a BLF key is a convenient way to transfer calls to users on your office phone system. The call will be transferred to the user monitored on the BLF key so you do not need to enter or select any phone number.


You can also set up a DSS key to transfer a call to a specified contact, giving you a one-press transfer feature.


You need to configure the transfer mode (blind, semi-attended, attended, or user selected) in advance on the web user interface.


Transfer Mode Configuration


The default BLF or DSS transfer mode is blind transfer, but it can be changed from the web user interface. 


To configure the transfer mode:


  • Access the web user interface as described here.

  • Navigate to Features>Transfer.

  • Select the desired transfer mode from the Transfer Mode via Dsskey pull-down list Blind Transfer or Attended Transfer.

    Alternatively, select Select Transfer to have the option to choose how to transfer the call after pressing the BLF or DSS key.

    If you select New Call the DSS or BLF key will dial the user instead of transferring a call to him.

BLF key Transfer


You can transfer a call to a BLF extension that is indicated by either a solid green (available) or a solid red light (already on a call).


To transfer a call with a BLF key:

  • Press the relevant BLF key to transfer the call. The call will be placed on hold and the BLF key will blink red.

  • If you configured the transfer mode for Blind Transfer the call will immediately get transferred.

  • If you configured the transfer mode for Attended Transfer wait for the monitored user to answer and see if he wishes to accept the call. Press the BLF key again or select Transfer to complete the transfer.

  • If you configured the transfer mode for Select Transfer you will get the option to select the transfer method or, instead, to place a new call to the user on the BLF key.

  • The BLF key will become solid red once the call is transferred.

DSS Key Transfer


You need to configure the DSS key and assign a contact to it before you can perform a transfer.


To configure a Transfer DSS Key:

  • Swipe left or right to go to the second idle screen or swipe down from the top to access the Quick Settings menu.

  • Select Settings and navigate to Features>Dsskey.

  • Select the desired line key.

  • Select Key Event from the Type field.

  • Select Transfer from the Key Type field.

  • Do one of the following:

    • (Optional.) Enter the string that will appear on the phone screen in the Label field.

    • Enter the contact number you want to transfer the call to in the Value field.

    • Select   and select the desired contact.

  • Select   .

Transferring a call with the DSS key:


  • During a call, press the DSS key you configured above to transfer the call to the specific contact.

  • If you configured the transfer mode for Blind Transfer the call will immediately get transferred.

    If you configured the transfer mode for Attended Transfer wait for the monitored user to answer and see if he wishes to accept the call. Press the DSS key again to complete the transfer.

  • If you configured the transfer mode for Select Transfer you will get the option to select the transfer method or to place a new call to the user associated with the key.

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