Installation guide

85
Another application is workable that putting the Asterisk to the Internet for branch office
communication.
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IP Address List:
Asterisk – 172.16.2.234
Vigor 3300V – 172.16.2.237
SoftPhone 2001 – 172.16.2.201
SoftPhone 2002 – 172.16.2.202
SoftPhone 2003 – 172.16.2.203
SoftPhone 2004 – 172.16.2.204
Vigor 2900V (VPN) – 172.16.2.205
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1. Download Asterisk from the Asterisk website page http://www.asterisk.org/.
2. Install the Asterisk and refer to the installation guide from the Asterisk website.
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sip.conf
Modify the sip.conf, the file is usually placed on the location /etc/asterisk.
[general] Setting in sip.conf
Modify the realm value to 172.16.2.234 for digest authentication.
realm=172.16.2.234 ; Realm for digest authentication
Modify the tos value, users could choose one kind of type. There are “lowdelay”,
“throughput”, “reliability”, “mincost” and “none”. It is depend on the network status.
Tos=lowdelay
Modify the defaultexpiry value for registration.
Defaultexpiry=300 ; Default length of incoming/outgoing registration
Modify the codec settings.
disallow=all ; First disallow all codecs
allow=ulaw ; Allow codecs in order of preference