[asterisk-users] Blocking 180 Ringing with PJSIP How to

[Saint Michael]

​I have a business need to block any 180 Ringing packets coming from an FXO
gateway, Grandstream 4108. I use Asterisk 13.9.1, and PJSIP. Is this even
possible? I all I may do is hack the source code,  will it be PJSIP code or
Asterisk code? Any help on where to look for the relevant code?​
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