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C3825-35UC-VSEC/K9
3825 w/ PVDM2-64,NME-CUE,35 CME/CUE/Ph lic,Adv IP,128F/512D
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Overview of C3825-35UC-VSEC/K9
C3825-35UC-VSEC/K9 is a modular enterprise router engineered with a robust architecture that combines integrated security services and unified communications with voice capabilities. It supports versatile power options via an AC power supply (with redundancy available in select configurations) and provides a mix of WAN and LAN interfaces designed for high-throughput, reliable connectivity in branch-office environments.
This router’s integrated services include advanced VPN capabilities (IPSec and SSL VPN), firewall and intrusion prevention, while its modular slots (two available NIM/EHWIC slots) allow for tailored interface upgrades. Designed for performance and redundancy, the C3825-35UC-VSEC/K9 is optimized for demanding enterprise use cases where secure voice, data, and video services must coexist on a single platform.
C3825-35UC-VSEC/K9 price is is available on request. Get immediate quote.
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In a multi-site enterprise seeking to consolidate data and voice, IT deploys the Cisco C3825-35UC-VSEC/K9 router with PVDM2-64 and NME-CUE to host 35 CME/CUE phone extensions and voicemail locally. Advanced IP services enable QoS, failover, and WAN optimization over MPLS. Outcome: Centralized management, 40% lower TCO, sub-50 ms latency for voice, and seamless dial plan integration across all offices.
A retail chain equips remote stores with C3825-35UC-VSEC/K9 featuring Advanced IP sec, DMVPN, and SIP trunking via the NME-CUE module. The PVDM2-64 handles branch voice transcoding, while IPsec tunnels secure point-to-point data and voice traffic to headquarters. Outcome: 70% reduction in PRI/leased-line costs, encrypted voice/data convergence, and centralized call routing for consistent customer service.
A mid-sized contact center implements the Cisco C3825-35UC-VSEC/K9 with PVDM2-64 and 35 CME/CUE/Ph licenses to run local IVR scripts, call queuing, and voicemail offload. Advanced IP Services deliver efficient SIP connectivity to the cloud ACD, while 128 MB flash and 512 MB DRAM support high-availability configurations. Outcome: 3 × faster IVR response times, improved call-handling capacity, and 99.99% uptime for customer interactions.
To get the detailed certification, please go to the Compliance Center.
 C3825-35UC-VSEC/K9 |  CISCO3825-AC-IP |  CISCO3845-V/K9 |  C3845-VSEC-CCME/K9 |  C3845-VSEC-SRST/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | N/A | N/A | N/A | Ethernet | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE | FCC / CE / RoHS | FCC / CE | FCC / CE / RoHS | FCC / CE / RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 18 inches | 16.7 inches | 16.3 inches | 17.3 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100 | 10/100/1000 | 10/100 | 10/100/1000 |
| Expansion Slots | NIM | EHWIC | NIM / EHWIC | EHWIC / NIM | EHWIC / NIM |
| Features | Mesh / VPN / Voice / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / VoIP / IPv6 Compatible / Firewall | Mesh / VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.7 inches | 1.73 inches | 4.4 inches | 4.4 inches | N/A |
| High Availability Support | Supported | Not Supported | Supported | Supported | Supported |
| Integrated Services | Voice / WAN Optimization | Voice / Video | Voice / Video / WAN Optimization | Voice | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 | RJ-45 / SFP | RJ-45, SFP | RJ-45 / SFP / Combo Ports |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 3+ Slots | 3+ Slots |
| Network Protocols | IPv4 / IPv6 | IPv4, IPv6 | IP / TCP / UDP / ICMP / SNMP | IPv4 / IPv6 | IPv4 / IPv6 / MPLS |
| Power | 250W | 221W | 350 W | 350 W | 350 Watt |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant Option | AC Power Supply / Redundant |
| Product Name | Cisco 3825 Integrated Services Router (C3825-35UC-VSEC/K9) | CISCO3825-AC-IP | Cisco 3845 Integrated Services Router (CISCO3845-V/K9) | Cisco 3845 Integrated Services Router with Virtual Security and CCME | Cisco C3845-VSEC-SRST/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | SNMP, CLI, Telnet, SSH | Telnet / SSH / SNMP | Telnet / SSH / SNMP | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | EIGRP / OSPF / BGP / IS-IS / RIP / Static Routing |
| Safety | N/A | IEC 60950-1 | N/A | N/A | N/A |
| Speed/Capacity | Gigabit | N/A | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | No | Yes |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.035 Gbps | 0.075 | 60 Mbps | 0.4 Gbps | 75 Mbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec / DMVPN / N/A | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN Ports | 2 WAN | 2 WAN |
| Weight | 25 lbs | 38 lbs | 31.3 lbs | 28 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 19 inches | 17.3 inches | 17.3 inches | 17.3 inches | N/A |
| Wireless Support | No | No | No | No | No |
Cisco 3825 with PVDM2-64 and NME-CUE delivers excellent UC performance. Handles multiple CME/CUE licenses efficiently.
Durable and reliable. Supports advanced IP features while maintaining secure, high-performance voice operations.
Easy to deploy and manage. Provides stable UC performance and predictable network reliability.
Reliable Cisco solution. Efficiently manages multiple voice endpoints and ensures seamless communications.
Efficient and strong. Ideal for medium to large branch offices requiring secure voice and UC deployments.
The Cisco 3825 router (SKU C3825-35UC-VSEC/K9) is a high-performance integrated services router with PVDM2-64 voice DSPs, NME-CUE module, 35 CME/CUE/Ph licenses, Advanced IP Services, 128 MB flash, and 512 MB DRAM.
The Cisco 3825 delivers up to 75 Mbps of throughput, supports 64,000 concurrent sessions, and provides up to 16,000 voice ports with its PVDM2-64 module and NME-CUE voice processing.
This SKU includes a Universal Cisco IOS Software license for Advanced IP Services and 35 concurrent Cisco CME/CUE/Phonelicense seats for integrated call processing.
The router comes standard with 512 MB of DRAM and 128 MB of onboard flash memory, upgradeable up to 1 GB DRAM and 256 MB flash for larger configurations.