[Asterisk-Users] ISP connection to the PSTN using Asterisk

[Ashling O'Driscoll]

Hi all,

Could someone let me know the most common way that an Internet ISP
would allow customers access to the PSTN?? Do they buy multiple fxo
cards such as the TDM400P and rent multiple lines from a larger
provider?? 

Would the best way be to connect to a third party voice/pstn
gateway?? Is that simply a matter of forwarding all sip traffic
destined for the pstn to another provider with a gateway and then
they have to worry about the number of lines etc??And if that is the
case, I presume no extra hardware is required?

Thanks,
Aisling.


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