Twilio + asterisk + fax

Asterisk Asterisk Fax
1

I want to solve the following quickly.

I want to receive faxes via asterisk using SIP trunking on twilio.
And I want to convert it to PDF with asterisk and save it.
However, incoming calls from twilio to asterisk do not result in a 404 error.
What should I configure in sip.conf and extensions.conf?

Also, can I set someone to check the version of asterisk from the external network?

help me.

2

The version of asterisk uses 13.27.0.

3

What is the configuration you are using now? What is the console output?

4

The sip.conf, extensions.conf and message logs are as follows.
The ip address and phone number have been changed to xxx and yy.
In the settings below, I save in TIFF, but I really want to save in PDF.

/var/log/asterisk/message

[Jun 14 13:52:54] WARNING[7762] chan_sip.c: Retransmission timeout reached on transmission xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx for seqno 1 (Critical Response) – See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 32000ms with no response
[Jun 14 13:52:55] ERROR[7762][C-00013caa] netsock2.c: getaddrinfo(“ip-xxx-xxx-xxx-xxx”, “(null)”, …): No address associated with hostname
[Jun 14 13:52:55] WARNING[7762][C-00013caa] acl.c: Unable to lookup ‘ip-xxx-xxx-xxx-xxx’
[Jun 14 13:52:55] NOTICE[7762][C-00013caa] chan_sip.c: Call from ‘’ (xxx.xxx.xxx.xxx:5060) to extension ‘+yyxxxxxxxxxx’ rejected because extension not found in context ‘default’.
[Jun 14 13:52:56] ERROR[7762][C-00013cab] netsock2.c: getaddrinfo(“ip-xxx-xxx-xxx-xxx’”, “(null)”, …): No address associated with hostname
[Jun 14 13:52:56] WARNING[7762][C-00013cab] acl.c: Unable to lookup ‘ip-xxx-xxx-xxx-xxx’’

6

sip.conf

[general]
context=default
port=5060
bindaddr=0.0.0.0
nat=yes

srvlookup=yes
udpenable=yes
tcpenable=yes
preferred_codec_only=yes
allowguest=yes
disallow=all
allow=ulaw
allow=alaw
allow=gsm
externip=xxx.xxx.xxx.xxx
localnet=xxx.xxx.xxx.xxx/xx

twilio-trunk
type=user
dtmfmode=rfc2833
canreinivite=no
insecure=port,invite
faxdetect=yes
context=yes
disallow=all

twilio0
host=xxxxxxxxxxxxx.twilio.com
defaultuser=xxxxxxxxx
secret=xxxxxxxxxxxxx
fromuser=+yyxxxxxxxxxx

7

extensions.conf

[faxin]
exten => _+yyxxxxxxxxxx,1,NoOp(Faxin-{EXTEN}) same => n,Set(FAXOPT(ecm)=yes) same => n,Set(FAXOPT(maxrate)=14400) same => n,Set(FAXOPT(minrate)=2400) same => n,Set(FAXOPT(modem)=v17,v27,v29) same => n,Set(TIFF={EXTEN}-{UNIQUEID}.tif) same => n,ReceiveFax(/tmp/{TIFF})
same => n,Hangup()
; Hangup.
exten => h,1,NoOp(Hangup in-fax)
same => n,NoOp(FAX Status: {FAXSTATUS}) same => n,NoOp(FAXOPT(ecm): {FAXOPT(ecm)})
same => n,NoOp(FAXOPT(filename): {FAXOPT(filename)}) same => n,NoOp(FAXOPT(headerinfo): {FAXOPT(headerinfo)})
same => n,NoOp(FAXOPT(localstationid): {FAXOPT(localstationid)}) same => n,NoOp(FAXOPT(maxrate): {FAXOPT(maxrate)})
same => n,NoOp(FAXOPT(minrate): {FAXOPT(minrate)}) same => n,NoOp(FAXOPT(pages): {FAXOPT(pages)})
same => n,NoOp(FAXOPT(rate): {FAXOPT(rate)}) same => n,NoOp(FAXOPT(remotestationid): {FAXOPT(remotestationid)})
same => n,NoOp(FAXOPT(resolution): {FAXOPT(resolution)}) same => n,NoOp(FAXOPT(status): {FAXOPT(status)})
same => n,NoOp(FAXOPT(statusstr): {FAXOPT(statusstr)}) same => n,NoOp(FAXOPT(error): {FAXOPT(error)})

8

Are there any problems with what is written in config?
Is there a missing config?
I am waiting for your advice.

9

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