Debug and less logs by filtering

To debug an issue it is always easier to focus on our source and destination. No one likes to dig into a lot of unwanted text.
I found out this by an accident and had forgotten about that a few time. Solution is simple. I show only an example.

configuration as below

call filter match-list 1 voice
incoming calling-number 442248123

and enable debugging (example)

debug condition match-list 1 exact-match
debug ccsip calls

what you will see is

show debug
CCSIP SPI: SIP Call Statistics tracing is enabled (filter is ON)

Just short, simple and so useful. You will see in logs only what you need. To match by other values just see documentation.