[asterisk-users] DND - message

[Andrew Joakimsen]

I had been wondering the same thing, I haven't really found any useful
information.
I use:

exten => 123,1,Dial(SIP/123)
exten => 123,2,Voicemail(u123)
exten => 123,102,Voicemail(b123)

If you set DND on the SIP phone usually it sends 486 busy here and
jumps to 102. If you reject the call it usually sends 603 decline. Is
there any way to get this value into the dialplan?

I know you can avoid the "on the phone" message when the phone is not
registered by using regexten.