Fax from internet to Grandstream ATA and real Phillips HFC171 fax

Hi,
I’ve got a Phillips HFC171 fax machine connected to a Grandstream HL502 ATA. Between internal extensions I can send faxes to the fax machine but when testing from and Internet test fax service Interpage Free Test Fax Service/Web-to-Fax Demonstration to my Sip Trunnk number, the fax machines rings and is displaying “connecting…” but then I loose the call and no fax.

Any must settings I need to have enabled on the Grandstream ATA or in the trunk in FreePBX?

[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_stack.c: PJSIP/100-00000060 Internal Gosub(func-apply-sipheaders,s,1) start
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:1] ExecIf("PJSIP/100-00000060", "1?Set(CHANNEL(hangup_handler_push)=crm-hangup,s,1)") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:2] NoOp("PJSIP/100-00000060", "Applying SIP Headers to channel PJSIP/100-00000060") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:3] Set("PJSIP/100-00000060", "TECH=PJSIP") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:4] Set("PJSIP/100-00000060", "SIPHEADERKEYS=") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:5] While("PJSIP/100-00000060", "0") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_while.c: Jumping to priority 13
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] pbx.c: Executing [s@func-apply-sipheaders:14] Return("PJSIP/100-00000060", "") in new stack
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_stack.c: Spawn extension (from-internal, 100, 1) exited non-zero on 'PJSIP/100-00000060'
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_stack.c: PJSIP/100-00000060 Internal Gosub(func-apply-sipheaders,s,1) complete GOSUB_RETVAL=
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_dial.c: Called PJSIP/100/sip:[email protected]:5060
[2024-02-14 13:19:42] VERBOSE[119149] netsock2.c: Using SIP RTP Audio TOS bits 184
[2024-02-14 13:19:42] VERBOSE[119149] netsock2.c: Using SIP RTP Audio TOS bits 184 in TCLASS field.
[2024-02-14 13:19:42] VERBOSE[119149] netsock2.c: Using SIP RTP Audio CoS mark 5
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_dial.c: Connected line update to SIP/1569926420-0000025a prevented.
[2024-02-14 13:19:42] VERBOSE[63459][C-00000196] app_dial.c: PJSIP/100-00000060 is ringing
[2024-02-14 13:19:47] VERBOSE[63459][C-00000196] app_dial.c: PJSIP/100-00000060 answered SIP/1569926420-0000025a
[2024-02-14 13:19:47] VERBOSE[63494][C-00000196] bridge_channel.c: Channel PJSIP/100-00000060 joined 'simple_bridge' basic-bridge <b80daf2f-ff8d-4dfa-8893-3ced19094f10>
[2024-02-14 13:19:47] VERBOSE[63459][C-00000196] bridge_channel.c: Channel SIP/1569926420-0000025a joined 'simple_bridge' basic-bridge <b80daf2f-ff8d-4dfa-8893-3ced19094f10>
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] bridge_channel.c: Channel SIP/1569926420-0000025a left 'simple_bridge' basic-bridge <b80daf2f-ff8d-4dfa-8893-3ced19094f10>
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] app_macro.c: Spawn extension (macro-dial-one, s, 56) exited non-zero on 'SIP/1569926420-0000025a' in macro 'dial-one'
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] app_macro.c: Spawn extension (macro-exten-vm, s, 46) exited non-zero on 'SIP/1569926420-0000025a' in macro 'exten-vm'
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Spawn extension (ext-local, 100, 3) exited non-zero on 'SIP/1569926420-0000025a'
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Executing [h@ext-local:1] Macro("SIP/1569926420-0000025a", "hangupcall,") in new stack
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Executing [s@macro-hangupcall:1] GotoIf("SIP/1569926420-0000025a", "1?theend") in new stack
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx_builtins.c: Goto (macro-hangupcall,s,3)
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Executing [s@macro-hangupcall:3] ExecIf("SIP/1569926420-0000025a", "0?Set(CDR(recordingfile)=)") in new stack
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Executing [s@macro-hangupcall:4] Hangup("SIP/1569926420-0000025a", "") in new stack
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] app_macro.c: Spawn extension (macro-hangupcall, s, 4) exited non-zero on 'SIP/1569926420-0000025a' in macro 'hangupcall'
[2024-02-14 13:20:37] VERBOSE[63459][C-00000196] pbx.c: Spawn extension (ext-local, h, 1) exited non-zero on 'SIP/1569926420-0000025a'
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] bridge_channel.c: Channel PJSIP/100-00000060 left 'simple_bridge' basic-bridge <b80daf2f-ff8d-4dfa-8893-3ced19094f10>
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] app_stack.c: PJSIP/100-00000060 Internal Gosub(crm-hangup,s,1) start
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:1] NoOp("PJSIP/100-00000060", "Sending Hangup to CRM") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:2] NoOp("PJSIP/100-00000060", "HANGUP CAUSE: 16") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:3] ExecIf("PJSIP/100-00000060", "0?Set(__CRM_VOICEMAIL=)") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:4] NoOp("PJSIP/100-00000060", "MASTER CHANNEL: 1707913182.703 = 1707913182.703") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:5] GotoIf("PJSIP/100-00000060", "0?return") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:6] Set("PJSIP/100-00000060", "__CRM_HANGUP=1") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:7] AGI("PJSIP/100-00000060", "agi://127.0.0.1/sangomacrm.agi") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] res_agi.c: <PJSIP/100-00000060>AGI Script agi://127.0.0.1/sangomacrm.agi completed, returning 0
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] pbx.c: Executing [s@crm-hangup:8] Return("PJSIP/100-00000060", "") in new stack
[2024-02-14 13:20:37] VERBOSE[63494][C-00000196] app_stack.c: Spawn extension (from-internal, , 1) exited non-zero on 'PJSIP/100-00000060'

Have you tried any other fax service ? How about T.38 ?

Hi… Do you mean another test fax service to see if the issue is the test service I’m using? I don’t know any others I’m afraid. But yes I need to try another one.