Standard PBX keys

This is the list of standard PBX keys. When choosing the keys for our pbx we tried to take this into consideration.
Before adding new functionality we suggest you look at existing systems or asks users how they expect it to work.

Retake: ###

Passthrough: ***

Conference: #0# (Create a conference or return with a peer)

Newcall: (number)** Example:{122**}

Hold: #*

Return hold: *0*

Return to a conference alone: ##

Return tone: *7

Transfer(unassisted): number*3 Example:{122*3}

Fortransfer(first part of the assisted transfer): number*4 Example: {122*4}

Dotransfer(finalize assisted transfer): *0