Difference between "Status UP" and "Status UP (ping)"

[Herbert Whistlefjord]

What's the difference between these two statuses? They were run 60s apart:

=================================================================================================
Name            e90a3575-fdbf-4c03-8a93-cf0c889fe64f
...
Ping            1742483830
PingFreq        60
PingTime        15.93
PingState       1/1/1
State           NOREG
Status          UP (ping)
Uptime          105093s
CallsIN         0
CallsOUT        285
FailedCallsIN   0
FailedCallsOUT  147
=================================================================================================

=================================================================================================
Name            e90a3575-fdbf-4c03-8a93-cf0c889fe64f
...
Ping            1742483770
PingFreq        60
PingTime        15.96
PingState       1/1/1
State           NOREG
Status          UP
Uptime          105032s
CallsIN         0
CallsOUT        285
FailedCallsIN   0
FailedCallsOUT  147
=================================================================================================

99% of the time it is UP but sometimes it is UP (ping)

 

[Herbert Whistlefjord]

I am inferring from this:

mod_sofia: with TLS gateway pinging never expires and no OPTIONS are sent after reseting the connection · Issue #2489 · signalwire/freeswitch

using TLS connection the gateway pinging status remains active and no options are sent after restarting the connection on the remote side. Expires 3600 Freq 3600 Ping 1718360143 PingFreq 30 PingTim...

github.com

that "UP (ping)" means that FreeSWITCH has sent an OPTIONS ping but has not yet received [or perhaps, processed] a response, but the previous response was UP. But that's just a guess.