Qualify from Asterisk

Hello! We have the realtime configuration whith PJSIP (behind SIP-PROXY). UAC’s register on the one Asterisk node. They have the option: max_contacts=3. When WebRTC-clients register we always get the different port for the back connection to it, and all “max_contacts” are filled and next permanently changes the new contact information. It works. But Asterisk sends the qualify to old contacts that are not visible in CLI and in DB. Where does Asterisk store them?

Sngrep on SIP-Proxy:

Current registered contacts

10.0.0.3 - Asterisk, 10.0.0.5 - Proxy

Hi partner!

Is Asterisk sending OPTIONS to endpoints that are no longer registered?

Which version of Asterisk are you using?

Hello!

Asterisk 18.13.0

can you try upgrade to 18.17.1 and recheck