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C1861-2B-VSEC/K9
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- 1861,8-user CME,CUE,Ph Lic,4FXS,2BRI,8xPOE,HWIC slot,Adv IP
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C1861-2B-VSEC/K9 Overview
C1861-2B-VSEC/K9 is a fixed enterprise router that delivers dual WAN connectivity alongside four LAN ports, engineered with integrated security features including IPSec and SSL VPN to maintain encrypted, reliable communications. The device is powered by an AC power supply and offers robust routing protocols such as OSPF, EIGRP, RIP, and BGP for optimized network performance in demanding business environments.
Built with modular capabilities through two NIM expansion slots, C1861-2B-VSEC/K9 provides up to 15 Mbps throughput with high availability support and advanced integrated services like voice, video, and WAN optimization. Its design targets business use cases that demand redundancy, secure remote management via SSH, Telnet, and SNMP, and comprehensive firewall and intrusion prevention features, ensuring efficient and safeguarded network operations.
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C1861-2B-VSEC/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / SSL VPN |
| Power Source | AC Power Supply |
| Routing Protocols | OSPF / EIGRP / RIP / BGP |
| Broadband | N/A |
| Architecture | Fixed |
| WAN Configuration | Dual WAN |
| WAN Ports | 2 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IP, VoIP |
| Remote Management | SSH, Telnet, SNMP |
| Compliance Standards | FCC, CE |
| Wireless Support | No |
| Speed/Capacity | Fast Ethernet |
| Firewall Features | Yes |
| Features | VPN, Firewall, IPv6 Compatible, Voice, Video |
| Use Case | Business |
| Management | Managed |
| Form Factor | Desktop |
| Integrated Services | Voice, Video, WAN Optimization |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 15 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection |
| Expansion Slots | NIM |
| Modular Slots Available | 2 Slots |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 256 MB |
| Flash Memory | 128 MB |
| Interface Ports | RJ-45, SFP |
| Power | 85 Watt |
| Device Type | Router |
| Product Name | Cisco C1861-2B-VSEC/K9 Integrated Services Router |
| Height | 1.75 inches |
| Width | 17 inches |
| Depth | 14 inches |
| Weight | 10 lbs |
C1861-2B-VSEC/K9 Use Case
Unified Branch Office Voice-Data Convergence
A mid-market firm deploys the C1861-2B-VSEC/K9-1861 with 8-user CME, CUE and phone licenses, 4 FXS and 2 BRI ports plus 8xPoE to consolidate voice and data at a 50-seat branch. The integrated HWIC slot delivers resilient WAN connectivity, while Advanced IP Services enforce QoS and secure VPN. Outcome: 40% lower TCO, streamlined management and carrier-grade uptime with end-to-end voice-data security.
Retail Network Edge with Powered IP Telephony
A national retailer leverages the C1861-2B-VSEC platform to power IP phones, PoE cameras and Wi-Fi APs across 200 stores. Built-in CME/CUE handles call routing and auto attendant; FXS/BRI ports support legacy PBX integration. Advanced IP Services enable PCI-DSS-compliant firewalling and site-to-site VPN. Outcome: unified communications, simplified rollouts and 30% faster store deployments with PCI-grade security.
Remote Healthcare Clinic Telemedicine Gateway
A rural health network installs the C1861-2B-VSEC router for voice-data redundancy in remote clinics. Eight PoE ports power VoIP handsets for patient intake; CME/CUE provides secure voicemail and video-enabled soft-clients. The HWIC slot hosts a 4G LTE backup link; Advanced IP Services secure PHI with AES encryption and HIPAA-compliant tunnels. Outcome: continuous telemedicine access, patient data protection and 99.9% service availability.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Modular | Fixed | Fixed | Fixed |
| Broadband | N/A | DSL | N/A | N/A | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC, CE, UL | IEEE 802.3, IEEE 802.3u | FCC / CE | FCC, CE | FCC, CE |
| Connectivity Type | Wired / Wireless | Wired | Wired / Wireless | Wired | Wired |
| Depth | N/A | N/A | N/A | 14 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC / CE | N/A | N/A | FCC, CE |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | NIM | NIM | EHWIC | NIM | EHWIC |
| Features | VPN, Firewall, Integrated Services, IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN, Firewall, IPv6 Compatible, Voice, Video | VPN / VoIP / Firewall / IPv6 Compatible |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 128 MB | 128 MB |
| Form Factor | Desktop | Desktop | Desktop | Desktop | Rack-mount |
| Height | N/A | N/A | N/A | 1.75 inches | N/A |
| High Availability Support | Supported | Not Supported | Not Supported | Supported | Supported |
| Integrated Services | Voice, Video | Voice / Video | Voice / Video | Voice, Video, WAN Optimization | Voice |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 / Combo Ports | RJ-45, SFP | RJ-45 |
| LAN Ports | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | 4 LAN Ports | N/A |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 128 MB | 512 MB | 256 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 1 Slot |
| Network Protocols | IPv4, IPv6 | IP, TCP, UDP, ICMP | IPv4 / IPv6 | IP, VoIP | IP |
| Power | 40W | 65 Watt | 65 Watt | 85 Watt | 60 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1861 Wireless Services Router | CISCO1841-ADSL2 | CISCO1801WM-AGB/K9 | Cisco C1861-2B-VSEC/K9 Integrated Services Router | Cisco 1861 Unified Communications Integrated Services Router (C1861-UC-4FXO-K9) |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | Telnet, SSH, SNMP | Telnet / SSH / SNMP | SSH, Telnet, SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / EIGRP / RIP / BGP | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | UL, cUL |
| Speed/Capacity | Gigabit | N/A | Gigabit | Fast Ethernet | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | ITU-T G.992.3 | N/A | N/A | FCC Part 68 |
| Throughput Capacity | 0.085 Gbps | 25 Mbps | 0.05 Gbps | 15 Mbps | 0.025 Gbps |
| Use Case | Business / Small Business | Business | Enterprise | Business | Business |
| VPN Support | IPSec / SSL VPN / DMVPN / GRE | IPSec | IPSec | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | N/A | 10 lbs | N/A |
| Wi-Fi Standard | WiFi 4 | N/A | WiFi 3 | N/A | N/A |
| Width | N/A | N/A | N/A | 17 inches | N/A |
| Wireless Support | Yes | No | Yes | No | No |
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Questions & Answers
Q
What is the Cisco 1861 Integrated Services Router (SKU C1861-2B-VSEC/K9)?
A
The Cisco 1861 Integrated Services Router (SKU C1861-2B-VSEC/K9) is a modular branch-office platform offering 8-user CallManager Express, Cisco Unity Express messaging, 4 FXS ports, 2 BRI ports, 8 PoE ports, one HWIC slot, and advanced IP features.
Q
How many IP phones does the 1861 support with CallManager Express (CME)?
A
The router supports up to 8 IP phones under Cisco CallManager Express for on-premises voice deployment.
Q
What voice licensing is included with the C1861-2B-VSEC/K9?
A
It includes an 8-user CME license, Cisco Unity Express for unified messaging, and voice-port licenses for 4 FXS and 2 BRI interfaces.
Q
How many FXS and BRI ports are available on this model?
A
The Cisco 1861 provides 4 FXS ports for analog phones and 2 BRI ports for digital ISDN devices.
Q
What is the PoE capacity of the eight PoE ports?
A
Each of the 8 PoE ports delivers up to 15.4 W (802.3af), ideal for IP phones and low-power access points.
Q
Can I expand the router with additional modules?
A
Yes. It offers one HWIC slot for WAN, voice, security, or connectivity module expansion.
Q
Which advanced IP services are supported by the 1861?
A
It supports advanced IP services including NAT, zone-based firewall, IPsec/SSL VPN, intrusion prevention, and advanced QoS.
Q
Does the 1861 include Cisco Unified Messaging (CUE)?
A
Yes. Cisco Unity Express (CUE) is integrated for voicemail, auto-attendant, and unified messaging capabilities.
Q
What are the memory and performance specifications?
A
The router ships with 256 MB DRAM, 64 MB flash, and a 266 MHz embedded processor delivering up to 45 Mbps of aggregate throughput.
Q
Is the Cisco 1861 suitable for small branch offices?
A
Absolutely. Its integrated voice, security, and data services make it ideal for small to midsize branch deployments.
Q
What are the power consumption and efficiency ratings?
A
With PoE active, it consumes up to 60 W max. It features efficient power management and energy-saving modes.
Q
How do I upgrade the IOS image on the Cisco 1861?
A
Use the console or ROMmon to TFTP/SCP the new IOS image; follow the upgrade procedure in the Cisco configuration guide.
Q
What built-in security features does this router offer?
A
It includes a zone-based firewall, intrusion prevention, IPsec/SSL VPN, Secure Shell (SSH), and HTTPS management.
Q
Can I configure QoS and traffic shaping on this router?
A
Yes. It supports hierarchical QoS, traffic policing, shaping, priority queuing, and class-based marking for voice and data.
Q
Is the Cisco 1861 rack-mountable and what are its dimensions?
A
It mounts in a 19-inch rack with an optional kit. Dimensions: 4.9″ H × 17.5″ W × 14.3″ D.
Q
What warranty and support options are available for SKU C1861-2B-VSEC/K9?
A
Cisco provides a limited lifetime warranty. Optional SMARTnet service offers 24/7 technical support, software updates, and hardware replacement.