Before placing the call:

asterisk-lab*CLI> queue show test
test has 0 calls (max unlimited) in ‘ringall’ strategy (0s holdtime, 52s talktime), W:0, C:7, A:0, SL:14.3% within 0s
Members:
PJSIP/687 (ringinuse enabled) (Not in use) has taken 5 calls (last was 121 secs ago)
No Callers

asterisk-lab*CLI> parking show

Parking General Options
Dynamic Parking : no

Parking Lot: default
Parking Extension : 700
Parking Context : parkedcalls
Parking Spaces : 701-705
Parking Time : 45 sec
Comeback to Origin : yes
Comeback Context : parkedcallstimeout (comebacktoorigin=yes, not used)
Comeback Dial Time : 30 sec
MusicOnHold Class :
Enabled : yes
Dynamic : no

asterisk-lab*CLI> core show channels
Channel Location State Application(Data)
0 active channels
0 active calls
21 calls processed

After the call was placed to the queue and it was answered by the agent:

asterisk-lab*CLI> queue show test
test has 0 calls (max unlimited) in ‘ringall’ strategy (0s holdtime, 52s talktime), W:0, C:7, A:0, SL:14.3% within 0s
Members:
PJSIP/687 (ringinuse enabled) (in call) (In use) has taken 5 calls (last was 146 secs ago)
No Callers

asterisk-lab*CLI> parking show

Parking General Options
Dynamic Parking : no

Parking Lot: default
Parking Extension : 700
Parking Context : parkedcalls
Parking Spaces : 701-705
Parking Time : 45 sec
Comeback to Origin : yes
Comeback Context : parkedcallstimeout (comebacktoorigin=yes, not used)
Comeback Dial Time : 30 sec
MusicOnHold Class :
Enabled : yes
Dynamic : no

asterisk-lab*CLI> core show channels
Channel Location State Application(Data)
PJSIP/681-00000019 8011@staff:2 Up Queue(test,k)
PJSIP/687-0000001a 8011@staff:1 Up AppQueue((Outgoing Line))
2 active channels
1 active call
22 calls processed

After the call was parked:

asterisk-lab*CLI> queue show test
test has 0 calls (max unlimited) in ‘ringall’ strategy (0s holdtime, 52s talktime), W:0, C:7, A:0, SL:14.3% within 0s
Members:
PJSIP/687 (ringinuse enabled) (in call) (In use) has taken 5 calls (last was 158 secs ago)
No Callers

asterisk-lab*CLI> parking show default

Parking Lot: default
Parking Extension : 700
Parking Context : parkedcalls
Parking Spaces : 701-705
Parking Time : 45 sec
Comeback to Origin : yes
Comeback Context : parkedcallstimeout (comebacktoorigin=yes, not used)
Comeback Dial Time : 30 sec
MusicOnHold Class :
Enabled : yes
Dynamic : no

Parked Calls
Space : 701
Channel : PJSIP/681-00000019
Parker Dial String : PJSIP/687

asterisk-lab*CLI> core show channels
Channel Location State Application(Data)
PJSIP/681-00000019 8011@staff:2 Up Queue(test,k)
PJSIP/687-0000001a 8011@staff:1 Up AppQueue((Outgoing Line))
1 active channel
1 active call
23 calls processed

After the parked call was picked up by another agent:

asterisk-lab*CLI> queue show test
test has 0 calls (max unlimited) in ‘ringall’ strategy (0s holdtime, 52s talktime), W:0, C:7, A:0, SL:14.3% within 0s
Members:
PJSIP/687 (ringinuse enabled) (in call) (In use) has taken 5 calls (last was 184 secs ago)
No Callers

asterisk-lab*CLI> parking show default

Parking Lot: default
Parking Extension : 700
Parking Context : parkedcalls
Parking Spaces : 701-705
Parking Time : 45 sec
Comeback to Origin : yes
Comeback Context : parkedcallstimeout (comebacktoorigin=yes, not used)
Comeback Dial Time : 30 sec
MusicOnHold Class :
Enabled : yes
Dynamic : no

Parked Calls
(none)

asterisk-lab*CLI> core show channels
Channel Location State Application(Data)
PJSIP/681-00000019 8011@staff:2 Up Queue(test,k)
PJSIP/687-0000001a 8011@staff:1 Up AppQueue((Outgoing Line))
PJSIP/689-0000001b 701@staff:1 Up ParkedCall(default,701)
2 active channels
2 active calls
24 calls processed

After the call ended:

asterisk-lab*CLI> queue show test
test has 0 calls (max unlimited) in ‘ringall’ strategy (0s holdtime, 66s talktime), W:0, C:8, A:0, SL:12.5% within 0s
Members:
PJSIP/687 (ringinuse enabled) (Not in use) has taken 6 calls (last was 4 secs ago)
No Callers

asterisk-lab*CLI> parking show default

Parking Lot: default
Parking Extension : 700
Parking Context : parkedcalls
Parking Spaces : 701-705
Parking Time : 45 sec
Comeback to Origin : yes
Comeback Context : parkedcallstimeout (comebacktoorigin=yes, not used)
Comeback Dial Time : 30 sec
MusicOnHold Class :
Enabled : yes
Dynamic : no

Parked Calls
(none)

asterisk-lab*CLI> core show channels
Channel Location State Application(Data)
0 active channels
0 active calls
24 calls processed