Following is a list of these classes; if aPBX is allocated an
IP address within one of these classes, the ISP or system administrator
needs to be contacted for a routable IP address.
Class A: 10.0.0.0 up to 10.255.255.255, Netmask: 255.0.0.0
Class B: 192.168.0.0 up to 192.168.255.255, Netmask: 255.255.0.0
Class C: 172.16.0.0 up to 172.31.255.255, Netmask: 255.255.240.0
Recall that your AsteriskNOW installation is located at 192.168.1.122, which means
that your PBX is located inside an internal network with a non-routable IP address.
This means that the best way to connect to your service provider would be with a
username/password combination.
VoIP Service Providers in AsteriskNOW
AsteriskNOW provides two types of VoIP service providers:
Built-in VoIP service providers
Custom VoIP service providers
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Service Providers??”Your Connection to the World
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The built-in VoIP service providers include AsteriskNOW and Asterisk-friendly
services providers, which have contributed in some form to the development or the
distribution of Asterisk around the world. The idea of a built-in service provider is
that the technical configuration is pre-configured within AsteriskNOW and the only
thing remaining is to configure a username and a password.
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