Would you like him to call you back later?
折り返し電話させましょうか？
Should I have him/her call you back?
折り返し電話させましょうか？

I’ll ask him/her to call you as soon as he/she gets back.
戻ってきたら電話するよう伝えます

Could you call again, please?
またお電話いただけますか？

Could you call again after 3 P.M.?
3時以降にまたお電話いただけますか？

I’ll tell him/her that you called.
お電話があった旨、伝えておきます

Would you like to leave a message?
伝言をお伝えしましょうか？

Can I take your message?
伝言をお伝えしますか？
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have a call put through 電話をつないでもらう
put a call through to ～に電話をつなぐ
put through a call 電話をかける
put through a call to ～に電話｛でんわ｝をかける
put and call 選択権付き取引、特権付き取引
put in a call 電話する、電話を入れる、電話をかける