Falha "Dial failed for some reason with DIALSTATUS = BUSY and HANGUPCAUSE = 21"

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Falha "Dial failed for some reason with DIALSTATUS = BUSY and HANGUPCAUSE = 21"

corleone

Ao tentar realizar uma chamada móvel local, a ligação não completa e retorna ocupado. No log, é possível ver "Dial failed for some reason with DIALSTATUS = BUSY and HANGUPCAUSE = 21" e "Dial failed due to trunk reporting BUSY - giving up".
Percebi também que o "prepend" e o "prefix" não estão fazendo o override das ligações.

Pelos testes que eu fiz, aparentemente é um erro de rota, mas esta estrutura não foi criada por mim e já existia na empresa, além disso os dial pattern me parecem corretos.

Alguma sugestão sobre como corrigir?

Asterisk 11.25.3

DIAL PATTERN 1
PREPEND:
PREFIX:
MATCH PATTERN:015ZZ9ZXXXXXXX
CALLER ID:

DIAL PATTERN 2
PREPEND:
PREFIX:
MATCH PATTERN:9ZXXXXXXX
CALLER ID:

LOG
[2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] app_macro.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: [2021-02-10 09:19:24] VERBOSE[866][C-00000637] pbx.c: -- Executing [out@sub-record-check:1] ExecIf("SIP/8073-00000a7b", "1?Set(__REC_POLICY_MODE=never)") in new stack
-- Executing [out@sub-record-check:2] GosubIf("SIP/8073-00000a7b", "0?record,1(exten,01531912345678,8073)") in new stack
-- Executing [out@sub-record-check:3] Return("SIP/8073-00000a7b", "") in new stack
-- Executing [01531912345678@from-internal:7] Macro("SIP/8073-00000a7b", "dialout-trunk,2,01531912345678,,off") in new stack
-- Executing [s@macro-dialout-trunk:1] Set("SIP/8073-00000a7b", "DIAL_TRUNK=2") in new stack
-- Executing [s@macro-dialout-trunk:2] GosubIf("SIP/8073-00000a7b", "0?sub-pincheck,s,1()") in new stack
-- Executing [s@macro-dialout-trunk:3] GotoIf("SIP/8073-00000a7b", "0?disabletrunk,1") in new stack
-- Executing [s@macro-dialout-trunk:4] Set("SIP/8073-00000a7b", "DIAL_NUMBER=01531912345678") in new stack
-- Executing [s@macro-dialout-trunk:5] Set("SIP/8073-00000a7b", "DIAL_TRUNK_OPTIONS=Ttr") in new stack
-- Executing [s@macro-dialout-trunk:6] Set("SIP/8073-00000a7b", "OUTBOUND_GROUP=OUT_2") in new stack
-- Executing [s@macro-dialout-trunk:7] GotoIf("SIP/8073-00000a7b", "0?nomax") in new stack
-- Executing [s@macro-dialout-trunk:8] GotoIf("SIP/8073-00000a7b", "0?chanfull") in new stack
-- Executing [s@macro-dialout-trunk:9] GotoIf("SIP/8073-00000a7b", "0?skipoutcid") in new stack
-- Executing [s@macro-dialout-trunk:10] Set("SIP/8073-00000a7b", "DIAL_TRUNK_OPTIONS=Tt") in new stack
-- Executing [s@macro-dialout-trunk:11] Macro("SIP/8073-00000a7b", "outbound-callerid,2") in new stack
-- Executing [s@macro-outbound-callerid:1] ExecIf("SIP/8073-00000a7b", "0?Set(CALLERPRES()=)") in new stack
-- Executing [s@macro-outbound-callerid:2] ExecIf("SIP/8073-00000a7b", "0?Set(REALCALLERIDNUM=8073)") in new stack
-- Executing [s@macro-outbound-callerid:3] GotoIf("SIP/8073-00000a7b", "1?normcid") in new stack
-- Executing [s@macro-outbound-callerid:6] Set("SIP/8073-00000a7b", "USEROUTCID=") in new stack
-- Executing [s@macro-outbound-callerid:7] Set("SIP/8073-00000a7b", "EMERGENCYCID=") in new stack
-- Executing [s@macro-outbound-callerid:8] Set("SIP/8073-00000a7b", "TRUNKOUTCID=2000") in new stack
-- Executing [s@macro-outbound-callerid:9] GotoIf("SIP/8073-00000a7b", "1?trunkcid") in new stack
-- Executing [s@macro-outbound-callerid:14] ExecIf("SIP/8073-00000a7b", "1?Set(CALLERID(all)=2000)") in new stack
-- Executing [s@macro-outbound-callerid:15] ExecIf("SIP/8073-00000a7b", "0?Set(CALLERID(all)=)") in new stack
-- Executing [s@macro-outbound-callerid:16] ExecIf("SIP/8073-00000a7b", "1?Set(CALLERID(all)=2000)") in new stack
-- Executing [s@macro-outbound-callerid:17] ExecIf("SIP/8073-00000a7b", "0?Set(CALLERPRES()=prohib_passed_screen)") in new stack
-- Executing [s@macro-outbound-callerid:18] Set("SIP/8073-00000a7b", "CDR(outbound_cnum)=2000") in new stack
-- Executing [s@macro-outbound-callerid:19] Set("SIP/8073-00000a7b", "CDR(outbound_cnam)=") in new stack
-- Executing [s@macro-dialout-trunk:12] GosubIf("SIP/8073-00000a7b", "0?sub-flp-2,s,1()") in new stack
-- Executing [s@macro-dialout-trunk:13] Set("SIP/8073-00000a7b", "OUTNUM=01531912345678") in new stack
-- Executing [s@macro-dialout-trunk:14] Set("SIP/8073-00000a7b", "custom=SIP/Intelbras") in new stack
-- Executing [s@macro-dialout-trunk:15] ExecIf("SIP/8073-00000a7b", "0?Set(DIAL_TRUNK_OPTIONS=M(setmusic^{default)Tt)")} in new stack
-- Executing [s@macro-dialout-trunk:16] ExecIf("SIP/8073-00000a7b", "0?Set(DIAL_TRUNK_OPTIONS=TtM(confirm))") in new stack
-- Executing [s@macro-dialout-trunk:17] Macro("SIP/8073-00000a7b", "dialout-trunk-predial-hook,") in new stack
-- Executing [s@macro-dialout-trunk-predial-hook:1] MacroExit("SIP/8073-00000a7b", "") in new stack
-- Executing [s@macro-dialout-trunk:18] GotoIf("SIP/8073-00000a7b", "0?bypass,1") in new stack
-- Executing [s@macro-dialout-trunk:19] ExecIf("SIP/8073-00000a7b", "1?Set(CONNECTEDLINE(num,i)=01531912345678)") in new stack
-- Executing [s@macro-dialout-trunk:20] ExecIf("SIP/8073-00000a7b", "1?Set(CONNECTEDLINE(name,i)=CID:2000)") in new stack
-- Executing [s@macro-dialout-trunk:21] GotoIf("SIP/8073-00000a7b", "0?customtrunk") in new stack
-- Executing [s@macro-dialout-trunk:22] Dial("SIP/8073-00000a7b", "SIP/Intelbras/01531912345678,300,Tt") in new stack
-- Executing [s@macro-dialout-trunk:23] NoOp("SIP/8073-00000a7b", "Dial failed for some reason with DIALSTATUS = BUSY and HANGUPCAUSE = 21") in new stack
-- Executing [s@macro-dialout-trunk:24] GotoIf("SIP/8073-00000a7b", "0?continue,1:s-BUSY,1") in new stack
-- Executing [s-BUSY@macro-dialout-trunk:1] NoOp("SIP/8073-00000a7b", "Dial failed due to trunk reporting BUSY - giving up") in new stack
-- Executing [s-BUSY@macro-dialout-trunk:2] PlayTones("SIP/8073-00000a7b", "busy") in new stack
-- Executing [s-BUSY@macro-dialout-trunk:3] Busy("SIP/8073-00000a7b", "20") in new stack
== Spawn extension (macro-dialout-trunk, s-BUSY, 3) exited non-zero on 'SIP/8073-00000a7b' in macro 'dialout-trunk'
== Spawn extension (from-internal, 01531912345678, 7) exited non-zero on 'SIP/8073-00000a7b'
-- Executing [h@from-internal:1] Hangup("SIP/8073-00000a7b", "") in new stack
== Spawn extension (from-internal, h, 1) exited non-zero on 'SIP/8073-00000a7b'

corleone

(English)
When I trying to make a mobile local call, it doesn't complete and returns busy. In the log, you can see "Dialing failed for some reason with DIALSTATUS = BUSY and HANGUPCAUSE = 21" and "Dialing failed due to the BUSY trunk report - giving up".
I also realized the "prepend" and "prefix" configured are not overriding the calls.

Apparently is a outbound route error, but this structure already existed in the company and was not created by me. In addition, there is two dial pattern configured and both seems correct to me.

Any suggestions on how to fix it?