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C3945E-CME-SRST/K9
3945E Voice Bundle w/ PVDM3-64,FL-CME-SRST-25, UC License PA
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C3945E-CME-SRST/K9 is a modular enterprise router designed to deliver robust integrated services including voice, video, and WAN optimization in demanding business environments. It features a scalable architecture with flexible power options including dual redundant AC power supplies, multiple WAN and LAN interfaces via modular cards, and built-in integrated services aimed at converged communications and reliable connectivity.
C3945E-CME-SRST/K9 offers advanced VPN capabilities with IPSec, SSL, DMVPN, and FlexVPN support, delivering secure remote connectivity and data protection. Engineered for high performance and redundancy, it provides industry-standard throughput, comprehensive firewall features, and support for dynamic routing protocols, making it a trusted choice for enterprise and business use cases.
C3945E-CME-SRST/K9 price is $9,418.00, a 52.4% saving from the Cisco list price of $19,795.00. C3945E-CME-SRST/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C3945E-CME-SRST/K9 for additional pricing. Browse the full Router Isr 3900 series or explore all Cisco products.
In a nationwide retail chain, remote stores deploy the Cisco C3945E-CME-SRST/K9 voice bundle with PVDM3-64 and FL-CME-SRST-25 to maintain uninterrupted voice services during WAN outages. The integrated Cisco Unified Communications Manager Express (CME) and SRST support up to 25 concurrent calls locally, while the PVDM3-64 DSP module ensures high-quality voice codecs. Outcome: Achieves 99.9% uptime for critical customer service lines, reduces revenue loss from downtime, and streamlines on-site call management.
A global consulting firm leverages the Cisco 3945E voice bundle with PVDM3-64 and UC License PA to host secure, high-definition voice and video conferences at branch locations. Local DSP resources handle up to 64 transcoded channels, integrated with Cisco Unified CM for seamless call control. Outcome: Delivers crystal-clear conference quality, cuts meeting costs by 40%, and lowers latency by offloading media processing on-premises.
A mid-sized financial services company implements the Cisco C3945E-CME-SRST/K9 bundle to consolidate voice, voicemail, and auto-attendant services across multiple offices. The UC License PA enables advanced call routing, while FL-CME-SRST-25 ensures local fallback for critical communications. PVDM3-64 supports expansion to over 500 users. Outcome: Simplifies system administration, reduces total cost of ownership by 30%, and provides a future-proof platform for unified communications.
To get the detailed certification, please go to the Compliance Center.
| C3945E-CME-SRST/K9 |  CISCO3945-HSEC+/K9 |  C3925E-VSEC-CUBEK9 |  C3925E-VSEC-SRE/K9 |  C3900-SPE250/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | N/A | N/A | Fiber Optic / DSL | N/A | 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 / UL | FCC, CE | FCC, CE, RoHS | FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 20.3 inches | 17 inches | 18 inches | 20 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC Part 15, EN 55032 | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM | NIM / EHWIC | NIM, SFP+ | EHWIC | EHWIC |
| Features | VPN / Firewall / IPv6 Compatible / Voice | VPN / Firewall / IPv6 Compatible / Modular | VPN, Firewall, IPv6, High Availability | VPN / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall / POE / MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 1 GB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 4.5 inches | 4.5 inches | 2 inches | 1.75 inches | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 / SFP | RJ-45, SFP, SFP+ | RJ-45 | RJ-45 / SFP |
| LAN Ports | Modular LAN | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 512 MB | 4 GB | 1 GB | 1 GB |
| Modular Slots Available | 3+ Slots | 2 Slots | 3+ Slots | 2 Slots | 3+ Slots |
| Network Protocols | IPv4 / IPv6 | OSPF / EIGRP / BGP / RIP / Static Routing | IPv4, IPv6 | IPv4, IPv6, PPP, Frame Relay | IPv4 / IPv6 |
| Power | 255 Watt | 375 Watts | 250 W | 150 Watt | 250 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco 3945E Integrated Services Router with CME and SRST | CISCO3945-HSEC+/K9 | C3925E-VSEC-CUBEK9 | Cisco C3925E-VSEC-SRE/K9 | C3900-SPE250/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 | Telnet / SSH / SNMP | CLI, Web, SNMP | SSH, Telnet, SNMP | CLI / SNMP / NetConf |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing |
| Safety | N/A | N/A | IEC 60950 | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | Yes | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.3 Gbps | 75 Mbps | 1 Gbps | 75 Mbps | 0.25 Gbps |
| Use Case | Enterprise / Business | Enterprise / Business | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / DMVPN / FlexVPN / N/A |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | Modular WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 16.5 lbs | 30 lbs | 20 lbs | 15 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.5 inches | 17 inches | 17 inches | 19 inches | N/A |
| Wireless Support | No | No | No | No | No |
3945E CME-SRST bundle provides seamless voice failover and UC capabilities. Ideal for medium branch offices.
Handles multiple endpoints efficiently with minimal downtime. Ensures reliable call quality and continuity.
Strong Cisco build. Easy to configure and manage for branch office UC needs.
Predictable performance and consistent uptime. Supports SRST and unified communications reliably.
Reliable solution for voice continuity. Maintains UC operations without interruption.
This integrated solution pairs the Cisco 3945E router with a PVDM3-64 DSP supporting up to 64 voice channels, a 25-user Cisco Unified CME and SRST license, plus the UC License PA for advanced collaboration features.
The PVDM3-64 module supports up to 64 simultaneous voice calls or media sessions, enabling high-density transcoding, conferencing, and signal processing.
FL-CME-SRST-25 enables Cisco Unified Communications Manager Express services for up to 25 endpoints and provides Survivable Remote Site Telephony failover in the event of WAN link loss.
The UC License PA unlocks advanced collaboration features such as Jabber support, presence, mobility, voicemail, and basic video calling under the Cisco Unified Communications suite.
Yes, with the SRST component it automatically reroutes calls to local PSTN or digital voice interfaces when the WAN link to CUCM is unavailable, ensuring continuous telephony.
The PVDM3-64 supports industry-standard codecs including G.711, G.729a/b, G.722, G.726, and G.723.1 for flexible bandwidth usage and interoperable high-quality voice.
The 3945E provides four Network Interface Module slots that can host a mix of T1/E1, FXO/FXS, and digital voice modules for up to 96 voice channels.
Yes, its modular design allows you to add DSP modules, interface cards, and upgrade licenses to expand voice capacity and enable additional UC features.
It is ideal for branch offices, retail stores, and remote sites requiring secure data routing, high-quality voice services, and survivable telephony in a single platform.
It integrates Cisco IOS security features—firewall, VPN, IPS, and secure segmentation—to protect voice and data traffic with deep packet inspection and encryption.
The 3945E is a 2U rack-mountable router with dual (redundant) power supply options (AC or DC), delivering enterprise-grade availability and energy efficiency.
You can manage the 3945E via Cisco Prime, Cisco DNA Center, CLI, SNMP, or web-based GUIs for real-time status, configuration management, and automated alerts.
Cisco includes a one-year limited hardware warranty with next-business-day replacement; SMARTnet service provides 24/7 technical support, OS updates, and advanced hardware replacement.
Yes, the 3945E interoperates seamlessly with CUCM for centralized call control, leveraging SRST for local survivability and Unified CME for branch-level call processing.
By using PVDM3 DSP resources and advanced codecs in combination with QoS policies, it prioritizes voice traffic to deliver consistent call quality over constrained links.
Common use cases include secure branch office routing, multi-site voice deployment, remote worker telephony, and survivable edge voice services in distributed networks.