Maybe it's a firewall but I think it's a slow dial-up connection
Requirements
* Internet connection (preferably broadband)
* Depending on your phone model, you need a DSS-25 Deskstand, DSS-25 compatible phones or DCU-60 USB cable, DCU-60 compatible phones
* For updating PC cards you need a PC card slot.
Recommended system requirements:
* Intel® Pentium® 4, 2.0 GHz or higher, AMD Athlon
* 300 MB free hard disk space.
* 512 MB RAM
* 1 USB (2.0) port
* Internet Explorer™ 4.0 Service Pack 1, or later.
* Adobe® Flash Player 8, or later. Available at Adobe
Operating System
* Windows XP™ (Home or Professional) with SP2 or later.
* Microsoft® Windows Vista™ (32-bit).