, IP- , , . , , IP- Asterisk, VoIP-.
, , , IP-.
, , . , , .
, IP-, . SIP- , . (default) , SIP-, firewall - .
, .
- , IP- , . , , IP-.
- (default) , 1234, admin, password, .
, (Extension), . sip.conf :sip.conf [101] username=101 secret=101 host=dynamic
, . FreePBX 13, 32- .
IP-, . IP- Asterisk ACL (Access Control List), sip.conf. permit/deny IP- .
- , IP- firewall. , , , firewall. , , IP- ICMP . , VPN (, Open VPN).
- , NAT (Network Address Translation). NAT, IP- IP- .
- , (Inbound Routes Outbound Routes). , .
- , . , MGCP skinny. /etc/modules.conf :
noload => chan_mgcp.so noload => chan_skinny.so noload => chan_oss.so
- SIP-, sip.conf -
alwaysauthreject=yes
. IP-. - ( , 810). PIN , .
, IP- , , .