There are different names for the following transfer methods, but most phone and most PBXs act in a very similar fashion.
These are fairly generic instructions that will generally work with most IP phones and Asterisk-based PBXs.
Generally, you do not put the caller on hold during transfers.
There are three common transfer types:
As you can see, transfer specifics can vary between phone makes and models.
If you want to send a caller to voicemail for any reason, just do a Blind Transfer and preface the destination extension number with a *
(asterisk) character.
For example, if you want to transfer a caller to voicemail of extension 100:
*100
as the destination extension number