Final answer:
CSOKI is not a standard acronym or term; for internal systems or industry-specific tools, consult the organization's user manual or support resources for functionalities such as finding a colleague's number.
Step-by-step explanation:
It appears there's a misunderstanding in the question since CSOKI is not a recognized acronym or term in common use related to Computers and Technology or any button function. If you're referring to an internal system or tool specific to an organization, such as a customer service operation knowledge interface (hypothetical expansion of CSOKI), you may need to consult your organization's user manual or support resources for the specific function of finding out a fellow representative's number.