Effective and polite way to end a phone conversation What are some ways that I can let the other speaker know I want to finish a phone conversation and am going to hang up.

I frequently come across as too abrupt. Usually something along the lines of extended pause followed by goodbye.

Leaving the room you can say 我现在要走了，再见！ so there is some lead up to the goodbye. What are some good lead up sentences that I can use for ending a phone conversation?
When talking with friends I generally end with one of the following.

好，就这样吧 = That's it (kind of, hard to translate)
好，我走了啊 = I'm off now
好，下次再聊 = Talk again soon

Or of course, the very simple 好，拜拜！
Looking at that, I guess I like to say 好 a lot!
Hope that helps.