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EM3-HDA-8FXS/DID
Cisco 2900 and 3900 series module EM3-HDA-8FXS/DID 8-Port F...
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EM3-HDA-8FXS/DID is a high-density FXS/DID telephony interface card engineered to deliver eight analog FXS ports with integrated direct inward dialing support. Designed for deployment in environments such as IP-PBX systems, VoIP gateways, and traditional PSTN networks, this module connects analog devices via standard RJ-11 connectors while supporting industry-standard SIP signaling for robust call processing.
Built on a PCIe form factor for seamless installation in data centers and enterprise applications, the EM3-HDA-8FXS/DID module offers key telephony features including caller ID and call waiting to modernize legacy voice systems. With its reliable operating temperature range and versatile design, it is ideally suited for customers looking to bridge conventional analog telephony infrastructure with advanced digital network capabilities.
EM3-HDA-8FXS/DID price is $795.00, a 57.9% saving from the Cisco list price of $1,890.00. EM3-HDA-8FXS/DID is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EM3-HDA-8FXS/DID for additional pricing. Browse the full Nm Nme Em Network Modules series or explore all Cisco products.
A national retail chain deploys the EM3-HDA-8FXS/DID 8-Port FXS/DID Voice/Fax expansion module on Cisco 2900 and 3900 series routers to integrate analog handsets and fax machines across 75 remote outlets. By leveraging existing analog devices, the IT team achieves 30% lower CAPEX, centralized voice provisioning, and consistent QoS across all locations.
A multi-clinic healthcare provider implements the EM3-HDA-8FXS/DID module on Cisco 3900 routers to connect analog fax terminals for patient records. This solution ensures HIPAA-compliant document transmission, eliminates third-party fax services, and reduces fax downtime by 95%, delivering rapid, secure file delivery and audit-ready logging.
A financial services firm scales its IVR and agent operations by installing the EM3-HDA-8FXS/DID expansion module on Cisco 2900 series routers. Eight additional DID lines allow direct inward dialing, optimized call routing, and dynamic load balancing. The result: 40% faster call handling, 25% higher first-call resolution, and simplified analog line management.
Mon–Fri: [09:00-16:00]
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| EM3-HDA-8FXS/DID |  NM-16ESW-1GIG |  NACNM-50UL |  NME-NAM-120S |  SM-D-ES3G-48-P | |
|---|---|---|---|---|---|
| Product Type | Telephony Interface Card | Network Module | Network Card | Network Module | Network Module |
| Module Type | FXS/DID | Ethernet | Ethernet | Ethernet | Ethernet |
| Connector Type | RJ-11 | RJ-45 | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | SIP | TCP/IP | TCP/IP, iSCSI | TCP/IP | TCP/IP |
| Form Factor | PCIe | Modular | PCIe | PCIe | Modular |
| 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 |
| Supported Features | Direct Inward Dialing (DID), Caller ID, Call Waiting | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Interface Ports | 8 x FXS | Ethernet | SFP+ | Ethernet / SFP+ | Ethernet |
| Product Name | EM3-HDA-8FXS/DID | NM-16ESW-1GIG | NACNM-50UL | NME-NAM-120S Network Module | SM-D-ES3G-48-P |
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.
FXS and DID ports delivered clear voice quality consistently.
Great density for analog voice deployments.
No call drops or noise issues encountered.
Straightforward installation and configuration.
Reliable module for enterprise voice gateways.
The EM3-HDA-8FXS/DID is an 8-port FXS/DID voice and fax expansion module designed for Cisco 2900 and 3900 Series Integrated Services Routers.
This module is compatible with Cisco ISR 2900 and 3900 Series routers equipped with an Enhanced High-Density Advanced Services (EM3) voice module slot.
The EM3-HDA-8FXS/DID provides eight FXS ports that can be configured for DID operation on all ports simultaneously for inbound direct-dial voice or fax services.
Yes. The module supports T.38 fax relay and fax pass-through for reliable fax over IP and traditional PSTN networks.
Yes. The EM3-HDA-8FXS/DID delivers simultaneous voice and fax services while preserving the router’s full data throughput.
It supports Caller ID generation, call progress detection, ring voltage control, silence suppression, comfort noise generation, and echo cancellation.
Power down the Cisco 2900 or 3900 Series router, slide the module into the EM3 slot, secure the captive screws, and power up the system for automatic recognition.
Use Cisco IOS CLI commands under global configuration mode (voice-port, voice-class, dial-peer) to define FXS interface parameters, signaling, and codec settings.
The module supports G.711 μ-law/A-law, G.729, G.723.1, and G.726 codecs for optimized bandwidth and voice quality.
The EM3-HDA-8FXS/DID module enables up to eight simultaneous voice or fax calls over its eight FXS/DID ports.
No. It draws all necessary power directly from the host Cisco router’s internal power supply, simplifying installation and cabling.
Yes. It is backed by Cisco’s standard limited lifetime hardware warranty and access to Cisco TAC support.
It supports robust dial-tone detection, off-hook/on-hook supervision, caller ID FSK signal processing, and seized-line detection for DID trunks.
No. To ensure stability, you must power down the router before installing or removing the module.
It operates at 0° to 40°C (32°–104°F), 10–90% non-condensing humidity, and meets FCC, CE, and UL safety standards.
Cisco IOS feature updates and patches are available via Cisco.com under the Software Download Center for your specific ISR platform.
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