Avaya 2420 Manuel D’Utilisation

Sets a callback when free on busy extensions and callback when next used 
on unanswered extensions.  
This function does not require any data entered when programmed. This 
function cannot be programmed through the phone by the user.  
When an extension called does not answer or is busy, pressing 

sets a callback on that extension. Whilst the callback is set, AutCB is 
shown with a   symbol. Pressing 

 AutCB again cancels the callback.  

When the extension becomes free or is next used, Ring Back to and the 
number appears on the phone that set the callback. Pressing 

 

answers the ringback and starts a call to the callback target.  

[User | Button Programming | Advanced | Miscellaneous | Ringback When Free] 

See also:  

•  "AutCB - Automatic Callback (!)" on page 27. 

  

Cancels any set ringback when free function.  
This function does not require any data entered when programmed. This 
function cannot be programmed through the phone by the user.  
Pressing 

 RBak- switches off any set ring back when free. If the 

ringback was set using a 

 AutCB key, that key will still appear with a   

symbol that can be cancelled by pressing the 

 AutCB key again. 

[User | Button Programming | Advanced | Miscellaneous | Cancel Ringback When 
Free] 

  

Sets the ringing pattern (sequence) used for voicemail and ringback calls. 
Not supported by the 2420.  
This function requires the ringing pattern (0 to 9) to be entered when 
programmed. The number is shown next to RBSeq. This function cannot 
be programmed through the phone by the user.  
Pressing 

 RBSeq changes the extension's ringback ringing pattern.  

[User | Button Programming | Advanced | Set Ringback Seq] 

See also:  

•  "ICSeq - Set Inside Call Sequence" on page 41. 
•  "OCSeq - Set Outside Call Sequence" on page 43.