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C1861-UC-2BRI-K9
1861, 8-user CME,CUE,Ph. Lic,4FXS,2BRI,8xPOE,HWIC slot
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C1861-UC-2BRI-K9 is a fixed, integrated services router designed for branch offices needing reliable voice, data, and secure VPN connectivity. It features a robust architecture with dual configurable 10/100 Ethernet ports that can operate as WAN interfaces paired with two integrated BRI ports for voice and data, ensuring versatile network connectivity. The router offers flexible power options via an external AC power adapter and provides built‐in firewall capabilities with VPN support covering IPSec and SSL, enabling secure remote access and unified communications.
Engineered for performance and redundancy, the C1861-UC-2BRI-K9 delivers dependable throughput for small business use cases while streamlining integrated services such as voice and WAN optimization. Although its fixed, desktop form factor does not support modular slot expansion or stacking, its comprehensive remote management (via Telnet, SSH, and SNMP), compliance with FCC/CE standards, and optimized routing protocols (OSPF, EIGRP, RIP, and static routing) make it an ideal solution for businesses seeking cost-effective and secure branch connectivity.
C1861-UC-2BRI-K9 price is is available on request. Get immediate quote.
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A small retail branch deploys the Cisco 1861-UC-2BRI-K9 to consolidate eight IP phones (CME), four analog FXS devices and eight PoE-powered Wi-Fi APs on one platform. Outcome: unified voice/data infrastructure reduces rack space by 50%, cuts CAPEX/OPEX and delivers carrier-grade QoS for real-time voice and wireless.
An international enterprise site uses the C1861 router’s 2 BRI ports to backhaul calls over DMVPN, runs Cisco Unity Express for local voicemail/auto-attendant, and handles up to eight users on CME. Outcome: high-availability voice services with local survivability, WAN bandwidth savings and centralized management.
A project team establishes a temporary office requiring IP telephony, analog fax lines and PoE CCTV. The 1861-UC-2BRI-K9 delivers four FXS fax ports, eight PoE ports for IP cameras/phones and an HWIC slot for future 4G. Outcome: rapid turn-up of mixed voice/fax/video services, scalable port licensing and seamless teardown.
To get the detailed certification, please go to the Compliance Center.
| C1861-UC-2BRI-K9 |  C1861-SRST-F/K9 |  CISCO1841-ADSL2-M |  C1841-3G-S |  CISCO1811W-AG-B/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | DSL | N/A | DSL |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC, CE | IEEE 802.3, IEEE 802.3u | FCC, CE | FCC / CE / UL | FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired / Wireless / Ethernet |
| Depth | N/A | N/A | N/A | N/A | 14.1 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | N/A | N/A | EHWIC | EHWIC | N/A |
| Features | VPN, Firewall, Unified Communications | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / NAT / QoS / IPv6 Compatible |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 128 MB | 256 MB | 256 MB | 32 MB |
| Form Factor | Desktop | Rack-mount | Desktop | Desktop | Desktop / Rack-mount |
| Height | N/A | N/A | N/A | N/A | 1.7 inches |
| High Availability Support | Not Supported | Supported | Not Supported | Not Supported | Supported |
| Integrated Services | Voice, WAN Optimization | Voice / Video | Voice | Voice / Video / WAN Optimization | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | N/A | 4 LAN Ports | 2 LAN Ports | N/A | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 128 MB | 128 MB | 128 MB |
| Modular Slots Available | N/A | N/A | 2 Slots | 2 Slots | N/A |
| Network Protocols | IPv4, IPv6 | TCP/IP, UDP, ICMP | IP, IPX, AppleTalk | IPv4 / IPv6 | IPv4 |
| Power | 65 W | 65W | 65 W | 65W | 65 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1861 Integrated Services Router UC-2BRI-K9 | Cisco C1861-SRST-F/K9 | CISCO1841-ADSL2-M | Cisco C1841-3G-S Integrated Services Router | CISCO1811W-AG-B/K9 Wireless Gateway Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP | SSH, Telnet, SNMP | Telnet, SSH, SNMP | Telnet / SSH / SNMP | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | 10/100 | N/A | N/A | N/A | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.03 Gbps | 0.05 Gbps | 0.075 Gbps | 0.025 Gbps | 0.15 Gbps |
| Use Case | Business | Enterprise | Small Business / Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN | IPSec | IPSec | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | WAN | WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 1 WAN | 1 WAN | 2 WAN |
| Weight | N/A | N/A | N/A | N/A | 10 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | WiFi 3 |
| Width | N/A | N/A | N/A | N/A | 17.7 inches |
| Wireless Support | No | No | No | No | Yes |
Cisco 1861-UC-2BRI is excellent for small offices. Supports 8 users, SRST, CME, and dual BRI lines reliably.
Stable voice and data performance. Handles POE, FXS, and BRI connections efficiently.
Reliable branch office router. Ensures consistent communications and minimal downtime.
Easy deployment and management. Maintains smooth voice and data operations.
Trusted Cisco build quality. Ideal for offices needing unified communication and secure connections.
The Cisco C1861-UC-2BRI-K9 is an integrated services router with an 8-user CME/CUE voice license, 4 FXS ports, 2 BRI ports, 8 PoE-enabled Ethernet ports, and one HWIC slot.
The router includes an 8-user Cisco Unified Communications Manager Express (CME) license and a Cisco Unity Express (CUE) voice messaging license.
It provides four FXS ports for analog phones and two BRI ports for ISDN connectivity, enabling flexible voice integration.
This model delivers eight IEEE 802.3af PoE ports, allowing you to power IP phones, wireless access points, and other PoE devices directly from the router.
Yes, the unit features a single HWIC slot that supports a variety of WAN and service expansion cards for future scalability.
Out of the box, the router supports Fast Ethernet WAN, with the HWIC slot accommodating options such as T1/E1, ADSL2+, and 3G/4G cellular interfaces.
With its 8-user CME license and eight PoE ports, it can support up to eight IP phones or other endpoint devices simultaneously.
Yes, the Cisco 1861-UC-2BRI-K9 ships with rack-mount ears for standard 19-inch racks and can also sit on a desktop.
It delivers up to 90 Mbps of aggregate throughput, with hardware-based encryption for secure VPN performance.
Built-in security includes Zone-Based Firewall, IPS, VPN termination for up to 30 tunnels, and Control Plane Policing for threat protection.
Voice configuration is handled through the CME CLI or web-based Cisco Configuration Professional, with step-by-step templates for FXS/BRI provisioning.
Yes, you can upgrade from the 8-user CME license to 24 or 48 users by purchasing the corresponding Cisco upgrade license keys.
The router typically consumes 60W without PoE load and up to 240W when all eight PoE ports deliver maximum power.
Cisco offers a limited lifetime warranty on the chassis and power supply, plus a 90-day warranty on other hardware components.
This router is ideal for small- to medium-sized branch offices requiring integrated voice, data, security, and PoE in a single platform.
Cisco provides 24/7 technical support, software updates, and comprehensive configuration guides on Cisco.com under the product support section.
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