nothing seemed to work i still was getting 20 seconds. nec tech suport said to use 24 02 04. that is a recall timer so i didnt think it had anything to do with it but it does work. i can set it for less or more rings. this is a system timer and effects all phones.
You need to do two things to change the Call Fwd Timer for an extension. (I see Ken hit it earlier)
1) Put the extension in a different timer class in 20-29
2) Adjust the settings for that timer class in 20-31-15
