There is a CPAN Module Net::Telnet::Cisco that works very well under most cases. The module handles the paging. Also, as long as the device behaves like Cisco CLI you should be OK.

Normally, on current Cisco devices, the prompt waiting on a paging is '--More--', and responding with a CR, "\r", returns only the next line of output, but responding with a Space, " ", returns the next page or the remaining text.

Good luck. -c