Thank you parnum, and sorry for my approximative English.
What I mean is:
I want all calls to ext. 1234 to be automatically "transfered" , daily at 6 pm, to ext. 1235. The next working day, this would be manually set to "off" by the user at ext. 1234, canceling the transfer using the device keyboard.
Does your answer mean that the automatic transfer at 6pm could be scheduled using a DNA macro ?