ADSL2 ADSL2+ VDSL2. Digital Signaling Protocol: ADSL2, ADSL2+, VDSL2. Supplied With AC Adapter. Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.2(4)M4, RELEASE SOFTWARE (fc2). A summary of U.S. laws governing Cisco cryptographic products may be found at.
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