IPTISP/PBX Configuration: SIP Configurations

Move to the Asterisk file

zaman@zaman:~$ cd /etc/asterisk

Need to change some configuration files : sip.conf, extensions.conf, voicemail.conf 

But before that we need to take backup files so that if anything goes wrong we can get back to the previous version from backup files.

For backup configuration

zaman@zaman:~$ sudo mv sip.conf sip.conf.backup

zaman@zaman:~$ sudo mv extensions.conf extensions.conf.backup

zaman@zaman:~$ sudo mv voicemail.conf voicemail.conf.backup

For Editing the sip.conf

zaman@zaman:~$ sudo gedit sip.conf

Under SIP.CONF file we should write:

[general] context=internal allowguest=no allowoverlap=no bindport=5060 bindaddr=0.0.0.0 srvlookup=no disallow=all allow=ulaw alwaysauthreject=yes canreinvite=no nat=yes session-timers=refuse localnet=192.168.0.0/255.255.255.0 [7001] type=friend host=dynamic secret=7001 context=internal [7002] type=friend host=dynamic secret=7002 context=internal

For Editing the extensions.conf

zaman@zaman:~$ sudo gedit extensions.conf

Under EXTENSIONS.CONF file we should write:

[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(7001@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()

For Editing the voicemail.conf

zaman@zaman:~$sudo gedit voicemail.conf

Under VOICEMAIL.CONF file we should write:

[main] 7001 => 7001 7002 => 7002

Now we have to reload the asterisk

zaman@zaman:~$ sudo asterisk -r

zaman*CLI> reload

Check the sip clients are added or not

zaman*CLI> sip show peers

If sip show peers command doesn’t work then 

zaman*CLI> module show like sip

zaman*CLI> module load chan_sip.so

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