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3925 CME-SRST bundle ensures uninterrupted voice and UC operations. PVDM3-64 provides reliable performance.
C3925-CME-SRST/K9
3925 Voice Bundle w/ PVDM3-64,FL-CME-SRST-25, UC License PAK
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C3925-CME-SRST/K9
- Description:
- 3925 Voice Bundle w/ PVDM3-64,FL-CME-SRST-25, UC License PAK
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- Brand:
- Cisco
- GTIN:
- 80479301877
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- Warranty:
- 3
- List Price:
$11,295.00
- Price:
$5,416.0052% off
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C3925-CME-SRST/K9 Overview
C3925-CME-SRST/K9 is a robust enterprise router featuring a modular architecture that supports integrated services such as voice, video, and data while offering flexible power options with built‐in redundancy. Designed for high-demand network environments, it delivers superior performance with multiple WAN and LAN interfaces, enabling secure VPN connectivity and efficient network segmentation.
C3925-CME-SRST/K9 also provides modular capabilities through expansion slots that allow additional service modules, ensuring scalability and adaptability for evolving business needs. Its comprehensive feature set—including high throughput, integrated firewall security, and advanced remote management protocols—makes it ideally suited for enterprise branch connectivity and secure telecommunication use cases.
C3925-CME-SRST/K9 price is $5,416.00, a 52% saving from the Cisco list price of $11,295.00. C3925-CME-SRST/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C3925-CME-SRST/K9 for additional pricing. Browse the full Router Isr 3900 series or explore all Cisco products.
C3925-CME-SRST/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN / N/A
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100/1000
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- OSPF, EIGRP, BGP, RIP, IPv4, IPv6
- Remote Management
- SSH, Telnet, SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN, VoIP, IPv6 Compatible, Firewall
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice / Video / WAN Optimization
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 0.075 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention / Malware Protection
- Expansion Slots
- NIM
- Modular Slots Available
- 3+ Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 512 MB
- Flash Memory
- 256 MB
- Interface Ports
- RJ-45 / SFP / Combo Ports
- Power
- 350W
- Device Type
- Router
- Product Name
- Cisco C3925-CME-SRST/K9
- Height
- 4.3 inches
- Width
- 17.5 inches
- Depth
- 16.0 inches
- Weight
- 21.7 lbs
C3925-CME-SRST/K9 Use Case
Branch Office Voice Continuity with C3925-CME-SRST/K9
A national retail chain deploys the C3925-CME-SRST/K9 voice bundle with PVDM3-64, FL-CME-SRST-25 and UC License PAK at each branch to provide localized call processing and automatic PSTN fallback if the WAN link fails. In a real-world outage scenario, SRST seamlessly takes over call control, maintaining 100+ concurrent voice sessions and preserving business continuity. Benefit: Ensures uninterrupted customer service, reduces revenue loss from downtime, and consolidates voice and data infrastructure on a single Cisco 3925 platform.
On-Premise Unified Communications Migration for Financial Services
A mid-sized financial services firm transitions from aging PBX systems to Cisco CME on C3925 hardware. Leveraging the PVDM3-64 DSP module, UC License PAK and FL-CME-SRST-25, the firm runs full VoIP routing, conferencing and SRST on a single router. In practice, engineers provision 200 SIP endpoints and enable advanced telephony features—hot desking, voicemail and secure SIP trunking—while retaining local call processing during downtime. Benefit: Delivers enterprise-grade voice services, reduces TCO by 30%, and accelerates time-to-market for new communication features.
Hybrid Cloud Voice Gateway for SMBs with UC License PAK
An IT services provider implements a hybrid cloud voice solution for an SMB client using the C3925-CME-SRST/K9 bundle as the on-premises gateway. The PVDM3-64 module powers 150 voice ports, while UC License PAK unlocks Cisco Unified Communications features and FL-CME-SRST-25 ensures local telephony during cloud provider outages. The gateway connects Webex Calling to the PSTN, preserving call quality and compliance. Benefit: Offers seamless failover between cloud and landline, optimizes bandwidth usage, and simplifies management via a consolidated Cisco router platform.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 C3925-CME-SRST/K9 |  C3900-SPE250/K9 |  C3925E-VSEC-SRE/K9 |  C3925E-VSEC/K9 |  CISCO3925-V/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | N/A | N/A | N/A | DSL / Fiber (Optional) | N/A |
| 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 | FCC / CE | FCC, CE, RoHS | FCC, CE | FCC / CE / RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 16.0 inches | N/A | 20 inches | 20 inches | 15.7 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC Part 15 | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100 |
| Expansion Slots | NIM | EHWIC | EHWIC | NIM / EHWIC | NIM / EHWIC |
| Features | VPN, VoIP, IPv6 Compatible, Firewall | VPN / IPv6 Compatible / Firewall / POE / MPLS | VPN / IPv6 Compatible / Firewall / MPLS | VPN / Firewall / Intrusion Prevention / IPv6 Compatible / Voice / POE | VPN / Voice / Video / IPv6 Compatible / Firewall / MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 4.3 inches | N/A | 1.75 inches | 1.73 inches | 4.4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Security / Data | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP / Combo Ports | RJ-45 / SFP | RJ-45 | RJ-45 / SFP | RJ-45 / Serial / EHWIC |
| 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 | 1 GB | 1 GB | 256 MB | 256 MB |
| Modular Slots Available | 3+ Slots | 3+ Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | OSPF, EIGRP, BGP, RIP, IPv4, IPv6 | IPv4 / IPv6 | IPv4, IPv6, PPP, Frame Relay | IPv4, IPv6 | IPv4 / IPv6 |
| Power | 350W | 250 W | 150 Watt | 275 Watts | 350 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply with Redundant Options | AC Power Supply / Redundant |
| Product Name | Cisco C3925-CME-SRST/K9 | C3900-SPE250/K9 | Cisco C3925E-VSEC-SRE/K9 | Cisco C3925E-VSEC/K9 Integrated Services Router | CISCO3925-V/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 | CLI / SNMP / NetConf | SSH, Telnet, SNMP | SSH / Telnet / SNMP | Telnet / SSH / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL Certified | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.075 Gbps | 0.25 Gbps | 75 Mbps | 450 Mbps | 300 Mbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise / Business | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN / N/A | IPSec / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN | IPSec VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 21.7 lbs | N/A | 15 lbs | 30 lbs | 27 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.5 inches | N/A | 19 inches | 17.2 inches | 17.3 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
N
Noah Bennett
5
Predictable uptime and easy management. Ideal for branch offices needing continuous UC services.
G
Grace Miller
4
Handles voice failover efficiently. Maintains call quality and seamless communication for office environments.
L
Liam Scott
4
Reliable and durable Cisco voice solution. Minimal downtime and stable UC performance.
C
Chloe Richardson
4
Easy deployment and management. Ensures branch office UC operations remain consistent and reliable.
Questions & Answers
What components are included in the Cisco ISR 3925 Voice Bundle (SKU C3925-CME-SRST/K9)?
The bundle includes a Cisco ISR 3925 router, a PVDM3-64 voice DSP module, a FL-CME-SRST-25 SRST license for 25 phones, and a Unified Communications License PAK.
What voice capacity does the PVDM3-64 module provide?
The PVDM3-64 module delivers DSP resources for up to 64 concurrent voice or video sessions, supporting high-density transcoding, conferencing, and media functions.
What functionality does the FL-CME-SRST-25 license provide?
The FL-CME-SRST-25 license enables Cisco Unified Survivable Remote Site Telephony for up to 25 IP phones when the central call manager is unavailable.
How does the Unified Communications License PAK enhance the ISR 3925 router?
The UC License PAK activates Cisco Unified Communications Manager Express (CME) features, including call processing, auto attendants, voicemail integration, and advanced telephony services.
Can this bundle support both SIP and H.323 voice calls?
Yes. The Cisco ISR 3925 Voice Bundle supports SIP, H.323 and MGCP protocols for flexible IP voice connectivity and trunking scenarios.
How many IP phones can I deploy with the SRST-25 license?
With the FL-CME-SRST-25 license you can register and power up to 25 IP phones in SRST fallback mode at remote sites.
Is the Cisco ISR 3925 Voice Bundle compatible with Cisco Unified Communications Manager (CUCM)?
Yes. The bundle interworks with CUCM for centralized call control and uses SRST to maintain basic telephony services during WAN outages.
What are the hardware requirements for installing the PVDM3-64 module?
The PVDM3-64 installs in a dedicated PVDM slot on the ISR 3925 chassis; power down, slide the module into the slot, then power up and verify via CLI.
How do I register and activate the Unified Communications License PAK?
Register your PAK on Cisco’s licensing portal, retrieve the Smart Account license token, then apply it in the router’s license configuration mode.
Can I expand the voice capacity beyond 64 calls on the ISR 3925?
Yes. You can install additional PVDM3 modules (up to platform limits) and upgrade SRST licensing for more concurrent calls and endpoints.
What security features are integrated into the Cisco ISR 3925?
The ISR 3925 includes Zone-Based Firewall, IPS, VPN (SSL, DMVPN, IPsec), secure boot, control plane policing, and Trust Anchor technologies.
Does this voice bundle include VPN and firewall support?
While VPN and firewall are built into the ISR 3925 hardware, licenses for advanced security (SEC license) are ordered separately from the voice bundle.
What power supply options are available for the Cisco ISR 3925?
The ISR 3925 supports dual redundant AC-220W or DC-250W power supplies, hot-swappable for high availability in enterprise environments.
What warranty and support entitlements come with the Cisco ISR 3925 Voice Bundle?
The router ships with a one-year limited hardware warranty. Cisco SMARTnet contracts can be purchased for 24x7 TAC support, software updates, and advance replacement.
How do I configure SIP trunking on the Cisco ISR 3925?
In CME configuration mode, define the SIP trunk with “voice service voip” and “sip” commands, specify the peer address under “sip-ua” and apply dial peers.
Where can I find software downloads and documentation for the 3925 Voice Bundle?
Visit the Cisco Software Download Center (software.cisco.com), search for “ISR 3925,” and review the product configuration guide and release notes.