Answer DAHDI channel before dialing

I am running FreePBX Distro 2.10.

I have the following in extencions_custom.conf. Do I really need to answer the channel before I dial?

; ; Unforward DAHDI channel 1 ; [UnFWD-Line1] exten = 201,1,answer() exten = 201,n,dial(dahdi/1/*73)

Yes