About this task
Do not change the vectors that are currently being used to process calls as changes can have immediate and uncertain effects on call treatment. Instead, write a new vector.
When testing vectors, do not test the entire vector at once, but first divide the vector into portions and test each portion until the entire vector is tested.
After you test the new vector, change the VDN to point to the new vector.
The following guidelines serve as a general procedure to change and test vectors: