How to make an outgoing call in FreeBPX?

Question

Asterisk

I did as shown in the picture, but the call does not go through.
Extenshin set up, you need to call 8800

Answer 1

There, prepend seems to be discarded
Read hints more carefully

Answer 2

If there is only one trunk, then prepend and prefix are empty, and in the pattern 8800XXXXXXX. But it's better to put a dot in the pattern to check.