Installation guide

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[fxo3]
type=friend
secret=1234
context=sip
disallow=all
allow=ulaw
allow=g729
allow=g723.1
dtmfmode=info
canreinvite=no
host=dynamic
defaultip=172.16.2.237
[fxo4]
type=friend
secret=1234
context=sip
disallow=all
allow=ulaw
allow=g729
allow=g723.1
dtmfmode=info
canreinvite=no
host=dynamic
defaultip=172.16.2.237
mgcp.conf
Modify the mgcp.conf, the file is usually placed on the location /etc/asterisk.
[general] Setting in mgcp.conf
Modify the Call Agent port value to 2727 for Vigor 3300V.
port = 2727