"Function SIP_HEADER not registered" is harmless but litters the logs... can it be defeated?

pekkaar · June 15, 2022, 7:03pm

Am using PJSIP with FPBX16/Asterisk 18 Sangoma distro. I have read all existing topics with relation to this error message in this forum and so I am fully aware that this is harmless – this is all the more reason to be able to defeat having this wasting CPU/storage.

Can this actual message be defeated WHILE all other errors are still getting logged into the files/console?

Thanks,
Peter

lgaetz · June 15, 2022, 7:10pm

Welcome to the community.

Can you share a call trace via pastebin showing a call where these warnings are generated? I just checked a few non-production systems and I’m not seeing them.
https://wiki.freepbx.org/display/SUP/Providing+Great+Debug#ProvidingGreatDebug-AsteriskLogs-PartII

david55 · June 15, 2022, 7:41pm

It does seem to be used in the friendly scanner reporting, without a technology check:

github.com

FreePBX/core/blob/release/16.0/functions.inc.php#L1593

      
        
            				$goto_context = strtok($item['destination'],',');
            				$goto_exten = strtok(',');
            				$goto_pri = strtok(',');
            				$ext->add($context, $exten, 'dest-ext', new ext_goto($goto_pri,$goto_exten,$goto_context));
            
            
			}
            			// If there's not a catchall, make one with an error message
            			if (!$catchall) {
            				$ext->add($catchall_context, 's', '', new ext_noop("No DID or CID Match"));
            				$ext->add($catchall_context, 's', 'a2', new ext_answer(''));
            				$ext->add($catchall_context, 's', '', new ext_log('WARNING', 'Friendly Scanner from ${CUT(CUT(SIP_HEADER(Via), ,2),:,1)}'));
            				$ext->add($catchall_context, 's', '', new ext_wait('2'));
            				$ext->add($catchall_context, 's', '', new ext_playback('ss-noservice'));
            				$ext->add($catchall_context, 's', '', new ext_sayalpha('${FROM_DID}'));
            				$ext->add($catchall_context, 's', '', new ext_hangup(''));
            				$ext->add($catchall_context, '_.', '', new ext_setvar('__FROM_DID', '${EXTEN}'));
            				$ext->add($catchall_context, '_.', '', new ext_noop('Received an unknown call with DID set to ${EXTEN}'));
            				$ext->add($catchall_context, '_.', '', new ext_goto('a2','s'));
            				$ext->add($catchall_context, 'h', '', new ext_hangup(''));
            			}

lgaetz · June 15, 2022, 7:47pm

If that’s the source of the warnings, then they should go away by disabling “Allow SIP Guests” in Settings → Asterisk SIP Settings.

system · July 15, 2022, 7:48pm

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