Description:

The Cisco 2811 Integrated Services Router is used in enterprise branch communication systems to provide secure data routing, voice gateway capabilities, and integrated network services within Cisco IOS-based infrastructures. Commonly installed in branch office networks, VoIP communication deployments, and unified communications environments where routers support voice processing, WAN connectivity, and telephony integration. Maintenance teams, network engineers, and system integrators use this router for branch network deployments, voice gateway installations, system upgrades, and replacement of legacy routing and telephony equipment within enterprise communication infrastructures.

Applications:

The Cisco 2811 router is deployed in enterprise networking environments where both data routing and voice communication services are required. It is commonly used in branch office networks, business VoIP deployments, and unified communications infrastructures where organizations integrate voice gateways with WAN connectivity. With installed modules such as AIM-CUE for voicemail services, VWIC-2MFT-T1 for T1 voice interfaces, and PVDM2-32 for digital signal processing, the router supports telephony services, voice processing, and connectivity to PSTN or PBX systems.

Technical Specifications:

• Manufacturer Part Number (MPN): Cisco 2811
• Product Type: Integrated Services Voice Router
• Router Series: Cisco 2800 Series ISR
• Installed Module: AIM-CUE (Cisco Unity Express module)
• Voice Interface Card: VWIC-2MFT-T1 Multiflex Trunk Interface
• DSP Module: PVDM2-32 Digital Signal Processor Module
• WAN Ports: Integrated Fast Ethernet interfaces
• Voice Capability: VoIP gateway and voice processing support
• Software: Cisco IOS operating system
• Expansion Slots: Network module and interface card expansion support
• Application: Enterprise routing with integrated voice services
• Mounting: Rack mountable

Common Replacements:

• Cisco 2821 Integrated Services Router
• Cisco 2851 Integrated Services Router
• Cisco ISR 2901 Integrated Services Router