Passo 2: Instalação de pacotes essenciais

sudo apt -y install git curl wget libnewt-dev libssl-dev libncurses5-dev subversion libsqlite3-dev build-essential libjansson-dev libxml2-dev uuid-dev

---------------------------------

DADOS FICHEIRO SIP.CONF

[general]
context = dummy
allowguests = yes
disallow = all
allow = ulaw
callevent = yes
notifyhold = yes
callcounter = yes

[7001]
type = friend
host = dynamic
secret = 7001
context = internal

[7002]
type = friend
host = dynamic
secret = 7002
context = internal

----------------------------------

DADOS FICHEIRO EXTENSIONS.CONF

[internal]

exten => 7001,1,Answer()
exten => 7001,2,Dial(SIP/7001,60)
exten => 7001,3,Playback(vm-nobodyavail)
exten => 7001,4,VoiceMail(7001@main)
exten => 7001,5,Hangup()


exten => 7002,1,Answer()
exten => 7002,2,Dial(SIP/7002,60)
exten => 7002,3,Playback(vm-nobodyavail)
exten => 7002,4,VoiceMail(7002@main)
exten => 7002,5,Hangup()

exten => 8001,1,VoicemailMain(7001@main)
exten => 8001,2,Hangup()

exten => 8002,1,VoicemailMain(7002@main)
exten => 8002,2,Hangup()
------------------------------------

DADOS FICHEIRO VOICEMAIL.CONF

[main]
7001 => 7001
7002 => 7002

------------------------------------

Passo 2: Instalação de pacotes essenciais

sudo apt -y install git curl wget libnewt-dev libssl-dev libncurses5-dev subversion libsqlite3-dev build-essential libjansson-dev libxml2-dev uuid-dev

---------------------------------

Passo 9: Proteção das passwords dos utilizadores com o algoritmo md5 (md5secret)

echo -n "username:realm:secret" | md5sum


---------------------------------

Passo 10: Protocolo Transport Layer Security (TLS) em asterisk

3 – Vamos gerar um novo certificado de segurança com o seguinte comando:

sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/asterisk/keys/private.key -out /etc/asterisk/keys /cert.crt

---------------------------------

4 – Vamos adicionar as 4 linhas da ativação do protocolo TLS (ficheiro sip.conf)

tlsenable=yes
tlsbindaddr=0.0.0.0
tlscertfile=/etc/asterisk/keys/cert.crt
tlsprivatefile=/etc/asterisk/keys/private.key


Depois no ficheiro SIP.CONF

encryption=yes
transport=tls