0. Login Debian
1. apt-cdrom add (untuk merefresh DvD1)
2. apt-cdrom add (masukkan DvD2)
3. apt-get install postfix -> internet site -> enter
4. apt-get install asterisk
5. apt-get install isc-dhcp-server
6. Konfigurasi Ip server (nano /etc/network/interface)
7. Konfigurasi Default untuk dhcp 
   (nano /etc/default/isc-dhcp-server)
   > ubah INTERFACESv4=""
   > menjadi INTERFACESv4="ens32" (ens32 tergantung interface dari device)
8. Konfigurasi DHCP server
9. Masuk direktori asterisk (cd /etc/asterisk)
10. Konfigurasi Sip
	pgdown sampe akhir masukan sintak berikut :
	[general]
	port=5060
	bindaddrr=0.0.0.0
	context=other
	videosupport=yes
	allwoverlap=no
	srvlookup=yes

	[1120]
	context=tkj
	type=friend
	secret=siswa1
	host=dynamic
	username=1120
	videosupport=yes
	disallow=all
	allow=ulaw
	allow=alaw
	canreinvite=no
	allow=gsm
	allow=h264p
	allow=h263
	allow=vp8

	[2220]
	context=tkj
	type=friend
	secret=siswa2
	host=dynamic
	username=2220
	videosupport=yes
	disallow=all
	allow=ulaw
	allow=alaw
	canreinvite=no
	allow=gsm
	allow=h264
	allow=h263p
	allow=vp8

	[3333]
	context=tkj
	type=friend
	secret=guru
	host=dynamic
	username=3333
	videosupport=yes
	disallow=all
	allow=ulaw
	allow=alaw
	canreinvite=no
	allow=gsm
	allow=h264p
	allow=h263
	allow=vp8


11. Konfigurasi Voicemail (nano voicemail.conf)
	cari baris [default] lalu tambahkan sintak berikut :
	1120 => 1120,Staff IT A,it_a@localhost
	2220 => 2220,Staff IT B,it_b@localhost
	3333 => 3333,Staff IT C,it_c@localhost

12. Konfigurasi Extension
	pgdown sampe akhir masukan sintak berikut :
	static=yes
	writeprotect=no
	clearglobalvars=no
	[general]
	[tkj]
	exten => 1120,1,Playback(pls-wait-connect-calls)
	exten => 1120,n,Dial(SIP/1120,10,tr)
	exten => 1120,n,VoiceMail(1120,u)
	exten => 1120,n,Hangup()

	exten => 2220,1,Playback(pls-wait-connect-calls)
	exten => 2220,n,Dial(SIP/2220,10,tr)
	exten => 2220,n,VoiceMail(2220,u)
	exten => 2220,n,Hangup()

	exten => 3333,1,Playback(pls-wait-connect-calls)
	exten => 3333,n,Dial(SIP/3333,10,tr)
	exten => 3333,n,VoiceMail(3333,u)
	exten => 3333,n,Hangup()
	include => parkedcalls

	;EXTVOICEMAIL
	exten => 5000,1,VoiceMailMain()

	;used record prompts
	[incoming_IVR]
	exten => 2220,1,Answer
	exten => 2220,2,wait(2)
	exten => 2220,2,Record(/tmp/asterisk recording%d:gsm)
	exten => 2220,2,wait(2)
	exten => 2220,5,Hangup
13. Restart asterisk 
	/etc/init.d/asterisk restart
	service asterisk restart 
14. Cek Register 
	asterisk -rvvv