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C1861W-SRST-C-F/K9
1861,WLAN,8-usrSRST/CME,CUE,4FXS,4FXO,8xPOE,SP Svcs,HWICslot
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Enterprise Clients
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Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
C1861W-SRST-C-F/K9 is a fixed architecture enterprise router that delivers versatile power options with an integrated AC power supply rated at 65W and supports dual WAN interfaces alongside four LAN ports. It incorporates integrated services—including voice via Survivable Remote Site Telephony (SRST), VPN features for secure connectivity, and modular expansion via an EHWIC slot—ensuring a compact yet high-performance design.
C1861W-SRST-C-F/K9 is engineered for small business and remote office environments where reliable throughput, robust redundancy through built-in firewall and intrusion prevention, and versatile integrated services are critical. Its performance-focused design supports essential routing protocols, remote management features, and integrated wireless support (WiFi 4), making it a dependable choice for modern network deployments.
C1861W-SRST-C-F/K9 price is is available on request. Get immediate quote.
Request bulk order quote for C1861W-SRST-C-F/K9 for additional pricing. Browse the full Router Isr 1800 series or explore all Cisco products.
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| C1861W-SRST-C-F/K9 |  C1861W-UC-2BRI-K9 |  CISCO1802 |  C1841-3G-V |  CISCO1801W-AG-B/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| 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 / UL | FCC / CE | IEEE 802.3, 802.3u, 802.3ab | FCC / CE | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired / Wireless | Wired | Wired | Wired / Wireless / Ethernet |
| Device Type | Router | Router | Router | Router | Router |
| Ethernet Technology | 10/100 | 10/100 | 10/100/1000 | 10/100 | 10/100 |
| Features | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / Firewall / IPv6 Compatible | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | Modular / VPN / Voice / Firewall | VPN / Firewall / Voice / IPv6 Compatible |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 128 MB | 256 MB | 128 MB | 128 MB |
| Form Factor | Desktop | Desktop | Rack-mount | Rack-mount | Rack-mount |
| High Availability Support | Not Supported | Not Supported | Supported | Not Supported | Supported |
| Integrated Services | Voice | Voice | Voice, Video, WAN Optimization | Voice / Data | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45, Combo Ports | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 x10/100 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 512 MB | 256 MB | 256 MB |
| Network Protocols | IPv4, IPv6, MPLS | TCP/IP, UDP, ICMP, IGMP | IP, TCP, UDP, HTTP, SNMP | IPv4 / IPv6 | IPv4, IPv6 |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply with Redundant Option | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1861W Integrated Services Router with SRST | Cisco 1861W Integrated Services Router for Unified Communications | Cisco 1802 Integrated Services Router | Cisco C1841-3G-V Integrated Services Router | CISCO1801W-AG-B/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP, HTTP/HTTPS | CLI, SNMP, HTTP/HTTPS | Telnet, SSH, SNMP, HTTPS | Telnet / SSH | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / EIGRP / RIP / BGP | OSPF / BGP / EIGRP / RIP / Static Routing |
| Stacking Capability | No | No | Yes | No | No |
| Use Case | Small Business | Business | Enterprise / Business | Enterprise / Small Business | Business / Small Business |
| VPN Support | IPSec / SSL VPN / DMVPN / N/A | IPSec | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | WAN | Dual WAN | WAN | WAN |
| WAN Ports | 2 WAN | 1 WAN | 2 WAN | Modular WAN | 1 WAN |
| Wireless Support | Yes | Yes | No | Yes | Yes |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Strong SRST and CME capabilities. Ensures voice continuity during WAN outages.
Cisco 1861W provides stable voice and data services. A dependable UC router for branches.
Reliable wireless and voice performance. Ideal for offices requiring backup telephony support.
All-in-one UC solution with solid uptime. Simplifies branch network management.
Consistent performance and trusted Cisco reliability. Voice services remain stable under load.
The Cisco 1861W is a branch-office router featuring integrated WLAN, 8-user SRST/CME, Cisco Unity Express, 4 FXS/4 FXO voice ports, 8-port 10/100 PoE, SP Services performance, and one HWIC slot.
The router includes eight 10/100 PoE LAN ports, two 10/100/1000 WAN ports, and one HWIC slot for WAN or LAN expansion.
Yes, it offers eight integrated 10/100 PoE ports delivering up to 15.4 W per port for IP phones, cameras, and access points.
It includes four FXS ports for analog phones and four FXO ports for PSTN connectivity, enabling on-premises telephony fallback.
Yes, the 1861W has an onboard WLAN controller supporting up to 24 access points for centralized Wi-Fi management.
SRST (Survivable Remote Site Telephony) ensures up to eight concurrent calls and local call processing if the WAN link fails.
Yes, the integrated CME delivers IP telephony features for up to eight users without additional servers.
CUE provides embedded voicemail, auto-attendant, and unified messaging for small sites, with support for up to eight mailboxes.
The Service Provider Services performance license unlocks up to 90 Mbps throughput and 75,000 packets per second forwarding.
Yes, one HWIC slot supports additional WAN, voice, security, or specialized modules for future growth.
It includes stateful firewall, intrusion prevention, VPN (IPsec/SSL), content filtering, and advanced encryption to secure branch traffic.
Use Cisco IOS CLI or Cisco Configuration Professional (CCP) for web-based setup, monitoring, and policy management.
Yes, it integrates with CUCM for centralized call control while providing local SRST fallback at the branch.
The router accepts 100–240 VAC at 50/60 Hz, consumes up to 180 W, and operates between 0 °C to 40 °C ambient temperature.
Cisco offers a limited lifetime hardware warranty and optional SMARTnet support for rapid hardware replacement and 24/7 technical assistance.
It supports up to 100 IPsec VPN tunnels for secure site-to-site and remote access connectivity.
Cisco Unity Express is included with unlimited licenses for voicemail ports and messaging services for up to eight users.
United States
