I have an IP Telephone installed in my office and I need a quick reference for end user guidance ?

Below are the manuals . Kindly select and download the IP Telephone Reference as per your telephone model:
 
AVAYA 1603: http://support.avaya.com/css/P8/documents/100059709
 
AVAYA 9608: https://www2.fgcu.edu/Telecommunications/Folders/9608_9611QuickReference...
 
AVAYA 9611G: http://www.fgcu.edu/Telecommunications/Folders/9608_9611QuickReference.pdf
 
AVAYA 9620: http://support.avaya.com/css/P8/documents/003926780
 
AVAYA 9630: http://support.avaya.com/css/P8/documents/003926782
 
AVAYA 9640: http://support.avaya.com/css/P8/documents/003926783
 
AVAYA 9650: http://support.avaya.com/css/P8/documents/003926785
 
AVAYA 9670: http://support.avaya.com/css/P8/documents/100165211