In my work environment, we are using Cisco 2960(POE SW) and CE500 POE Switch. And all phones (7940, 7906,8945) are registered in call manager and they got vlan information from POE. But i disabled CDP as per our Company Policy in SW, then all Video Phones (8945) are affected , but others are not affected.
My company is insisting me to disable CDP in POE . As per my knowledge CDP is necessary to give VLAN information to the Phones. Is there any other way to make Phones to work properly (disabling CDP)? Is it possiblefor all phones to work normally without CDP in POE?
And also Please give suggestion that why only video phones are affected in my Testing not others ?