Identify the caller. (formal)
May I ask who´s calling?
You´re Icpna´s receptionist. Pick up the phone.
Thanks for calling Icpna. How can I help you?
Ed left his keys in your house. Leave a message.
Tell Ed he left his keys in my house.
Offer to take a message. (formal)
May I take a message?
Ask about Anna. (formal)
May/Could/Can I speak to Anna, please?
Ask the caller to wait. (formal)
Could you hold (for a moment)?
Identify the caller. (informal)
Who´s calling?
Offer to take a message. (informal)
Can I take a message?
Ask about Pam. (informal)
Is Pam there?
Ask the caller to wait. (informal)
Hang on. / Can you hang on?