How can I know if I get a collect call?

In a way to know before you answer the phone.

Is there a smartphone application?

467 2016-05-07 Gentleman

When a toll-free call comes in, a toll-free call comes first, and you will be notified if you want to answer the call.
Then you can either receive it or reject it.

Gentleman 9 years ago 0

A. 2

There will be an announcement, so you can get it if you want.
You can't make a collect call secretly.

Gentleman 9 years ago 0

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