Where can I find SIP logs (full)

Is there an way to see SIP logs in full mode? The logs via web aren’t real sip logs right? if not available via web, where is stored?(did search and couldnt find it). sorry!!!

I mean, where can I find something like:

xx:xx:xx.xxx: SIPTR: Received [0,UDP] 401 bytes from xxxxxxxxxxx:xxxx <<<<<
REGISTER sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP xxxxxxxxxxx;branch=z9hG4bK-3302414101;rport
Content-Length: 0
From: "xxxx"sip:xxxxxxx:5060; tag=383039370131303836383438303735
Accept: application/sdp
User-Agent: xxxxxxxxxxxxx
To: "xxxxxxxx"sip:xxxxxxxxx:5060
Contact: sip:[email protected]:5060
CSeq: 1 REGISTER
Call-ID: xxxxxxxxxx
Max-Forwards: 70

the logs are real time. if you are comfortable with the command line interface (or use winscp) you will find the files in /var/log/asterisk/

the gui also have a cli interface that will display the more recent log entries.