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Cisco2821, Cisco 2821 AC Power, 2 Gig Ports, 4 HWICs, 3 PVDM, 1 NME-X, 2 AIM, IP BASE, 64F, 256D.
The Cisco 2821 Integrated Services Router provides the following support:
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Wire-speed performance for concurrent services such as security and voice , and advanced services to multiple T1/E1/xDSL WAN rates
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Enhanced investment protection through increased performance and modularity
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Enhanced investment protection through increased modularity
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Increased density through High-Speed WAN Interface Card Slots (four)
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Enhanced Network Module Slot
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Support for over 90 existing and new modules
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Support for majority of existing AIMs, NMs, WICs, VWICs, and VICs
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Two Integrated 10/100/1000 Ethernet ports
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Optional Layer 2 switching support with Power over Ethernet (PoE) (as an option)
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Security
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On-board encryption
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Support of up to 1500 VPN tunnels with the AIM-EPII-PLUS Module
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Antivirus defense support through Network Admission Control (NAC)
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Intrusion Prevention as well as stateful Cisco IOS Firewall support and many more essential security features
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Voice
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Analog and digital voice call support
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Dedicated Extension Voice Module slot
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Optional voice mail support
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Optional support for Cisco CallManager Express (Cisco CME) for local call processing in stand alone business for up to 48 IP Phones
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Optional support for Survivable Remote Site Telephony support for local call processing in small enterprise branch offices for up to 48 IP phones
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