Disable line x while phone is set to DND

[IT-Risch_Support]

Hello friends. I wanted to ask how the DND function in the phone works while it is turned on? Does it also disable line? Or does the phone still use the credentials to log on the sip server?

I have two Yealinik phones and I wanted to use ony one set of credentials. Normally, if one username and password is entered on two different devices it can occur, that the phonecall stops when second device logs on the server. What i want is to disable the line while the phone is set to DND. Maybe it is also possible to create a parameter like disable.line.x.on.dnd for autoprovision as well.