Question

When ending a service call, you should do all of the following EXCEPT:
Say something positive, such as "Thank you for your time" or "I have enjoyed talking to you."
Let the customer hang up first to be sure they have completed the conversation.
Tell customers to call back if they need further help or information.
Say "Good-bye" and hang up before customers can prolong the conversation.

Answer 1

"Say 'Good-bye' and hang up before customers can prolong the conversation."

You should not end the call abruptly — instead thank them, invite further contact if needed, and let the customer hang up first to be sure the conversation is complete.