How to use Call Parking and BLF cooperation using PJSIP

[meat]

Hello.
I am not good at English.Sorry.

I used chan_SIP for park hold and BLF.
Basically, I was able to use Parking Call and BLF
without any problems with just the settings below.

■extensions.conf(chan_sip)
exten => 700,1,NoOp()
exten => 700,n,Park(default,)

include => parkedcalls

■ res_parking.conf(chan_sip&res_pjsip common)
[default]
parkext => 700
parkpos => 701-709
parkinghints = yes
parkingtime => 60
comebacktoorigin = yes

■GRANDSTREAM GRP2612P

※Actually set up 701 and 702.

■Error Statement (ir)
NOTICE[19438]: res_pjsip_exten_state.c:429 new_subscribe: Endpoint ‘302’ state subscription failed: Extension ‘701’ does not exist in context ‘Long-Distance’ or has no associated hint

■extensions.conf(res_pjsip)
[Hints]
; Allow dynamic hint creation for every extension.
exten = _7XX,hint,PJSIP/${EXTEN}

However, since moving to PJSIP, it is no longer available at all.
Is it necessary to register PARKING SPACES as an ENDPOINT?
In parallel, I’m going to learn how to use BLF first.

Please let me know if anyone has a solution.
Thank you.

[meat]

Hello.
We’ve made progress about BLF.
For this one, there was a problem with the position of the hint.

Now all that is left is to set up a Parking Call using res_pjsip.

Unable to create PJSIP channel - endpoint ‘701’ was not found

I’ll see if I can’t resolve.

[meat]

I managed to solve the problem.
I added the following to hints with reference to the following

==================
mieat*CLI> dialplan show parkedcalls

[ Context ‘parkedcalls’ created by ‘res_parking/default’ ]
‘700’ => 1. Park() [res_parking]
‘701’ => hint: park:701@parkedcalls [res_parking/default]
1. ParkedCall(default,701) [res_parking/default]

==================

■extensions.conf
[Hints]
; Allow dynamic hint creation for every extension.
exten = _2XX,hint,PJSIP/${EXTEN}
exten = _700,hint,PJSIP/${EXTEN}
exten = _701,hint,park:701@parkedcalls

Thank you all so much.
I hope this helps someone.