On-site telephone etiquette

You are working on a problem at a customer’s desk and you’re in the process of discussing the details of the issue with the customer. Your mobile phone rings and you recognize that the call is from another customer. What do you do?

A) Send the call to voice mail and return the call after completing your current task.

B) Excuse yourself and step away from the desk to take the call.

C) Maximize your efficiency by taking the call where you’re sitting.

D) Ignore the call, and don’t worry about returning it. If the call is important, the caller will open up a new help-desk ticket.