Unable to create channel of type 'PJSIP' (cause 3 - No route to destination)

Thank you @dewdude I tried your steps but still no luck now I’m getting these errors

 == Using SIP RTP CoS mark 5
    -- Executing [1002@local-office-extension:1] Dial("SIP/1001-00000001", "PJSIP/jashmin") in new stack
[Dec  3 22:27:30] ERROR[21084]: res_pjsip.c:903 ast_sip_set_tpselector_from_transport_name: Unable to retrieve PJSIP transport 'transport-udp'
    -- Called PJSIP/jashmin
  == Everyone is busy/congested at this time (1:0/1/0)
    -- Auto fallthrough, channel 'SIP/1001-00000001' status is 'CONGESTION'

Here are my pjsip configuration

[atiqure]
type=endpoint
transport=transport-udp
context=local-office-extension
disallow=all
allow=ulaw
allow=gsm
auth=1001
aors=1001

[jashmin]
type=endpoint
transport=transport-udp
context=local-office-extension
disallow=all
allow=ulaw
allow=gsm
auth=1002
aors=1002

;
; A few more transports to pick from, and some related options below them.
;
;transport=transport-tls
;media_encryption=sdes
;transport=transport-udp-ipv6
;transport=transport-udp-nat
;direct_media=no
;
; MWI related options

;aggregate_mwi=yes
;mailboxes=6001@default,7001@default
;mwi_from_user=6001
;
; Extension and Device state options
;
;device_state_busy_at=1
;allow_subscribe=yes
;sub_min_expiry=30
;
; STIR/SHAKEN support.
;
;stir_shaken=no
;stir_shaken_profile=my_profile

[1001]
type=auth
auth_type=userpass
password=1001
username=1001

[1002]
type=auth
auth_type=userpass
password=1002
username=1002

[1001]
type=aor
max_contacts=1
contact=sip:1001@192.168.1.126:5060

[1002]
type=aor
max_contacts=1
contact=sip:1002@192.168.1.126:5060


I commented Transport line after that this error is coming

 Using SIP RTP CoS mark 5
    -- Executing [1002@local-office-extension:1] Dial("SIP/1001-00000003", "PJSIP/jashmin") in new stack
    -- Called PJSIP/jashmin
  == Everyone is busy/congested at this time (1:0/1/0)
    -- Auto fallthrough, channel 'SIP/1001-00000003' status is 'CONGESTION'