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High density voice module with consistent call quality.
EVM-HD-8FXS/DID
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High density voice/fax extension module - 8 FXS/DID Cisco Ro...
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EVM-HD-8FXS/DID
- Description:
- High density voice/fax extension module - 8 FXS/DID Cisco Router Network Module
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- Brand:
- Cisco
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- Warranty:
- 3
- List Price:
$1,770.00
- Price:
$675.0061.9% off
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EVM-HD-8FXS/DID Overview
EVM-HD-8FXS/DID is a high-density telephony interface module designed to deliver eight FXS ports with integrated Direct Inward Dialing (DID) functionality. Engineered for modern voice networks, this module employs standard RJ-11 connectors and supports protocols such as SIP and analog telephony, making it a solid choice for businesses looking to modernize legacy PBX systems with VoIP technology.
Optimized for rapid installation and reliable performance in enterprise and contact center environments, the EVM-HD-8FXS/DID features a modular design suited for integration into dedicated chassis and telephony gateways. Built to operate within an ambient range of 0 to 70°C and store reliably between -40 to 85°C, it offers robust voice features including caller ID and call waiting while ensuring streamlined system expansion and cost-effective scalability.
EVM-HD-8FXS/DID price is $675.00, a 61.9% saving from the Cisco list price of $1,770.00. EVM-HD-8FXS/DID is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EVM-HD-8FXS/DID for additional pricing. Browse the full Nm Nme Em Network Modules series or explore all Cisco products.
EVM-HD-8FXS/DID Specifications
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Power Consumption
- 5W
- Expansion Slots
- N/A
- Form Factor
- Modular
- Data Rate
- N/A
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Module Type
- FXS/DID
- Connector Type
- RJ-11
- Max Speed
- N/A
- Interface Ports
- FXS
- Input Voltage
- 5V
- Product Type
- Telephony Interface Module
- Supported Protocols
- SIP / Analog Telephony
- Compatibility
- Telephony Systems
- Supported Features
- FXS interface, Direct Inward Dialing, Caller ID, Call Waiting
- Product Name
- EVM-HD-8FXS/DID
EVM-HD-8FXS/DID Use Case
Centralized Branch Office Telephony with EVM-HD-8FXS/DID Module
In a multi-site enterprise, the EVM-HD-8FXS/DID high-density voice/fax extension module integrates eight analog FXS/DID ports into a Cisco ISR, consolidating PSTN access across remote offices. This delivers streamlined deployment, centralized call routing, and up to 40% lower telephony costs while maintaining carrier-grade reliability.
Scalable Call Center Analog Port Expansion using EVM-HD-8FXS/DID
A high-volume contact center deploys the EVM-HD-8FXS/DID module on Cisco routers to support eight simultaneous voice and fax channels for IVR and agent communications. The result is rapid port provisioning, improved call throughput, and optimized agent productivity with carrier-grade QoS and failover capabilities.
Secure Healthcare Fax Gateway with EVM-HD-8FXS/DID Module
A regional hospital implements the EVM-HD-8FXS/DID extension module to consolidate analog fax lines into its Cisco infrastructure for HIPAA-compliant document exchange. This yields encrypted fax transmission, centralized management, and full audit trails—ensuring data security, regulatory compliance, and reduced maintenance overhead.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| EVM-HD-8FXS/DID |  NME-VMSS-HP32 |  NM-1A-OC3-POM |  NM-1FE-FX-V2 |  NM-CEM-4SER | |
|---|---|---|---|---|---|
| Product Type | Telephony Interface Module | Network Module / Network Card | Network Module | Network Module | Network Module |
| Module Type | FXS/DID | Ethernet | WAN Module | Ethernet (Fast Ethernet Fiber) | Ethernet |
| Data Rate | N/A | 10G | N/A | 100Mbps | 10Gbps |
| Connector Type | RJ-11 | SFP+ | SFP | SC Duplex | SFP+ |
| Supported Protocols | SIP / Analog Telephony | TCP/IP / iSCSI | TCP/IP | TCP/IP | TCP/IP, iSCSI |
| Form Factor | Modular | PCIe | Modular | Modular | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 5V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Telephony Systems | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco Routers | Cisco, Juniper, Dell, HP |
| Max Speed | N/A | 10Gbps | N/A | 100Mbps | 10Gbps |
| Supported Features | FXS interface, Direct Inward Dialing, Caller ID, Call Waiting | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | N/A | Auto-negotiation, Jumbo Frames | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 5W | 15W | N/A | 4W | 5W |
| Interface Ports | FXS | Ethernet | SFP | Ethernet | SFP+ |
| Expansion Slots | N/A | PCIe | N/A | N/A | N/A |
| Product Name | EVM-HD-8FXS/DID | NME-VMSS-HP32 | NM-1A-OC3-POM | NM-1FE-FX-V2 | NM-CEM-4SER |
| Height | N/A | 1.73 inches | N/A | N/A | N/A |
| Width | N/A | 3.5 inches | N/A | N/A | N/A |
| Depth | N/A | 0.9 inches | N/A | N/A | N/A |
| Weight | N/A | 1.2 lbs | N/A | N/A | N/A |
Reviews & Ratings
A
Aqsa Iqbal
4
Handled DID lines without issues.
S
Stephan Mueller
5
Reliable expansion for voice gateways.
N
Nicole Harris
4
Stable performance under load.
Y
Yousuf Rahman
5
Good choice for enterprise voice.
Questions & Answers
What is the Cisco EVM-HD-8FXS/DID module?
The Cisco EVM-HD-8FXS/DID is a high-density voice/fax extension network module that provides eight FXS ports with Direct Inward Dialing (DID) for Cisco Integrated Services Routers.
Which Cisco routers are compatible with the EVM-HD-8FXS/DID module?
This module is compatible with Cisco ISR 4000 Series and 2900/3900 Series routers equipped with an Enhanced High-Density Ports (EHWIC) slot.
How many FXS and DID ports does the module support?
It supports eight FXS ports for analog voice/fax devices and full DID signaling on each port for direct inbound dialing.
Does the module support fax transmission, and which protocols are included?
Yes. It supports T.38 real-time fax relay and G.711pass-through for reliable fax over IP deployments.
Which voice codecs are supported by the EVM-HD-8FXS/DID?
Supported codecs include G.711μ-law, G.711a-law, G.729A/B, G.723.1, and G.726 for optimized bandwidth usage and voice clarity.
Is the EVM-HD-8FXS/DID hot-swappable?
No. To ensure system stability, power down the router before installing or removing the module.
What software version is required to run this module?
Cisco IOS XE 16.6.1 or later is required to support full voice/fax functionality and feature sets.
Does the module require additional licensing?
Yes. A Cisco Unified Communications or Voice licensing package on the ISR is required for full feature activation.
How do I install the EVM-HD-8FXS/DID module in my router?
Power off the router, insert the module into an EHWIC slot, secure the retention screw, and power on. Then configure voice ports in IOS.
What is the maximum number of simultaneous calls supported?
It supports up to eight simultaneous voice or fax sessions, one per FXS port, subject to router CPU capacity.
How much power does the module consume?
Typical power consumption is 6.5 W. Ensure your router’s power budget supports this additional load.
What environmental specifications apply to the module?
Operating temperature: 0 °C to 40 °C; storage temperature: –40 °C to 70 °C; relative humidity: 10%–95%, non-condensing.
How can I configure Direct Inward Dialing on the module?
In Cisco IOS, define the dial-peer with ‘port 0/0/0:1’ syntax and configure ‘incoming called-number’ to map DIDs to extensions.
What warranty and support options are available?
Standard Cisco 1-year limited warranty. Optional SMARTnet service offers 24/7 support and hardware replacement.
Where can I order the Cisco EVM-HD-8FXS/DID module?
Order through authorized Cisco resellers or via the Cisco Commerce Workspace using part number EVM-HD-8FXS/DID.
How do I upgrade the module’s firmware?
Firmware updates are delivered as part of Cisco IOS XE releases; upgrade the router IOS image to apply the latest module firmware.