h1. DTMF combinations during connection

During connection subscribers can use DTMF combinations to invoke [[VAS]].

Some [[VAS]] for DTMF combinations is embedded into the system.
You can redefine DTMF sequences, which are used to invoke this [[VAS]], but cannot change the behavior of these [[VAS]].
The bright examples are [[VAS]] [[Blind transfer]] and [[Attended transfer]].

However besides this embedded [[VAS]] you can define your own [[VAS]].
For them you can define both DTMF for activation and behavior of the system after that [[VAS]] has been activated.
The bright examples are [[VAS]] [[Connecting to conversation additional participants]] and [[Receiving fax during conversation]].

Currently available DTMF combinations user can see in menu [[DTMF features]].

[[DTMF комбинации во время соединения|Русский перевод]]