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About PSTN

hi all:

can anyone tell me if the cisco have the PSTN transmission network devices or not?now i want to know the PSTN structure details,could you give me a usful link?,can anybody give me a conplete toplogy of the ISP.thanks in advance.

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Re: About PSTN

As far as I know, Cisco provides PSTN network devices for eg. PSTN Gateway Solution i.e the PGW 2200 Softswitch, Switches and Routers. You could use the following link for a few scenarios on Telco and ISP dial up.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_configuration_guide_chapter09186a00800d97d1.html

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