Asterik. How to display the trunk name of incoming calls?

Question

Asterisk

The phone receives incoming calls and does not show which trunk is ringing.
Writes the number of the caller twice, but it is necessary to display the trunk name (or ID prefix) and the caller's phone number.
Answer: "Number ID Prefix" in Inbound Routing. One of the options.

Answer 1

for each trunk, it seems that you need to manually write
the same => n,Set(CALLERID(name)=Name)
in the extensions_custom.conf file
, that is, write each trunk, each number separately.
It's right?!