Expressions to Make a phone call

Starting a Conversation on the phone Extending a conversation on the phone Ending a conversation on the phone
Hello. This is... Hold on, please. Bye
Hello...speaking. By the way... I'll call you later.
Who's calling,please? Furthermore... It's nice talking to you, Bye.
Can I speak to...? Moreover... See you then, Bye.
May I speak to...? Well... I'll call you back./td>
What number are you calling? Anyway... It's time to say good bye.

Example:
Yuni : Hello, Yuni speaking!
Caca: Hello, this is Caca. May I speak to Darmi, please?
Yuni : I'm sorry but she's gone out. Would you like to leave a message?
Caca : Yes, please tell her that I'm going to St. Louis this November to my project, so I will not be able to participate in her campaign.
Yuni : Hold on, please. I have to take a note. Is there anything else?
Caca : No. Thanks. Good bye.
Yuni : You're welcome. Bye.