[asterisk-users] Dailplan with playtones

[basti]

Hello I use this dial paln:

[o2-in]
exten => o2,1,Answer
exten => o2,n,Playback(hello-world)
exten => o2,n,Ringing
exten => o2,n,Dial(SIP/10&SIP/20&Local/s at no-op,25,rt)
exten => o2,n,Playtones(425/1000,0/4000)
exten => o2,n,Wait(30)
exten => o2,n,Hangup()

All is fine. Hello world is Playback and I hear a ring tone.
If I remove the Playback hello-world. No ring tone is hearing anymore.
Also not when my softphone is ring.

What I want is:

- Play caller a ring tone when softphone is dial or even if Subscriber
absent
- han up after a while

I try this https://www.voip-info.org/asterisk-cmd-playtones

Best Regards