While using the old chan_sip driver with Asterisk Realtime, sipfriends/sipregs tables had a field named “lastms” where you can find the latency for the peer.
In using PJSIP, I expect to find the same value in the ps_contacts table, but I was unable. What am I missing? Where can I find the latency/RTT for a contact?
I know of noone working on such a thing, and am unaware if anyone has any such plans. If you want to submit a feature/improvement request it is done on Github[1].