On phone call

top up    - 満たす
expense    - 料金
budget    - 予算 : I'm on a budget - あんまりお金ないんだよねー
subscribe    - 長期的な契約を結ぶ
term / period    - 期間
hang up    - 電話を切る
pick up    - 電話をとる
call back    - かけ直す
voice mail    - 留守番電話
caller ID    - 着信者の表示
call waiting    - キャッチコールの待ち時間
airtime minute    - 無料通話時間


- Wrong number

I think you've got the wrong number.
What number were you trying to get / dial?
May I ask who is calling? / Who is this?
I seam to have got a wrong number.
I'm sorry for bothering you / inconvenience.


- Voice mail

Hello, You've reached Yu's phone. / This is Yu.
I'm not available to come to the phone right now.
I'm not able to take your call right now.
But if you leave a message after the beep, I'll get back to you as soon as possible.
Good bye.

<Leave a message>
Hi, this is Yu.
It's 2:30 on Dec.6.
--object--
Please call back to 000-000-0000.


Can I leave a message? / Could you take a message.
Let me grab a pen. / Give me a few moments.