Manufacturer: Cisco
Product ID: NM-HD-1V
Product Description: One-slot IP Communications Voice/Fax Network Module
Shipping: Typically ships within 2-3 days
Warranty: 1-Year Standard Warranty
Any Questions?
1-800-TO-MULTI or Email

Pre-Owned, Used And Refurbished Cisco NM-HD-1V

The NM-HD-1V from Cisco Systems is a 1-slot IP communications voice/fax network module designed to support up to four channels of analog/BRI voice using any supported coder-decoder (codec). There is no support for T1/E1 or data WAN. The Cisco NM-HD-1V provide managed service providers, enterprises, and service providers the power to directly connect to the PSTN and traditional telephony equipment (private branch exchange [PBX], key system, analog telephones, fax machines, etc.) to existing Cisco 2600XM Series, Cisco 2691, 3640, and 3660, and Cisco 3700 Series voice gateway routers. The NM-HD-1V, along with others in its family, are the most versatile combination of analog and digital voice and data capabilities in a single network module.

Our extensive NM-HD-1V inventory provides for quick order turn-around, often allowing us to ship "same day" or within just 1-2 business days. What's more? As an independent supplier, we are able to offer more equipment options than are available through distribution, including new, used and refurbished NM-HD-1V. In some instances, our pre-owned equipment may still be in new condition, still sealed in original factory packaging (but at a fraction of the cost).

MLCP is committed to quality, and we guaranty any refurbished Cisco NM-HD-1V purchase with our standard one year warranty. All used NM-HD-1V equipment is tested to factory specifications and packaged professionally for safe transport. As an experienced supplier of pre-owned network hardware, we understand that we have to be better than the manufacturer, and that fundamental principle guides us every day.

Is your interest in the NM-HD-1V as a result of an upgrade? We may be interested in your surplus networking equipment and encourage you to take advantage of our flexible "buy-back" options, including an up-front purchase option and generous trade-ins for credit.

For a quote today, simply click onto the "Request a Quote" button on the right, or call 1-800-TO MULTI (866-8584) for assistance. Thank you!

You might also be interested in NM-24DM.

General Information
Manufacturer: Cisco
Product ID: NM-HD-1V
Product Description: One-slot IP Communications Voice/Fax Network Module
Product Type: Network Module
Marketing Information
The Cisco IP Communications voice/fax network module for the Cisco 2600XM Series, Cisco 2691, and Cisco 3600 and 3700 series voice gateway routers enable packet voice technologies including VoIP (H.323, Media Gateway Control Protocol (MGCP), and Session Initiation Protocol (SIP)), voice over Frame Relay, and voice over ATM (ATM Adaptation Layer 2 (AAL2) and AAL5).

Supports up to four channels of analog/BRI voice using any supported coder-decoder (codec). (No support for T1/E1 or data WAN.)
Technical Information
Application/Usage: Data Networking
I/O Expansions
Expansion Slots: 1 x Voice Interface Card (VIC)
Management & Protocols
  • Network Management Support:
  • Cisco CallManager
  • Simple Network Management Protocol (SNMP) compliant
  • Manageable via a Management Information Base (MIB) browser
  • CiscoView interface for configuration
  • ConfigMaker
  • NetSys supported
Protocols: VoIP
Status Indicators:
  • LED indicators for voice-processing resources and port status
MTBF: 1605514 Hour
Environmental Conditions
Temperature: 32°F (0°C) to 104°F (40°C) Operating
  -13°F (-25°C) to 158°F (70°C) Storage
Humidity: 5% to 85% Non-condensing Operating
  5% to 95% Non-condensing Non-operating
Additional Information:
  • Features:
  • Voice over Packet Transport:
    • Voice/Fax over IP
    • Voice/Fax over Frame Relay
    • Voice over ATM is supported using AAL2 or AAL5 encapsulation
    • RTP header compression
    • Call Admission Control and PSTN Fallback
    • Advanced QoS mechanisms
  • Voice Features:
    • Echo cancellation
    • Silence suppression, voice activity detection (VAD)
    • Comfort noise generation
    • Private line automatic ring-down (PLAR)
    • Local/advanced voice busy-out
    • Caller ID support
    • Hunt groups across cards
    • Integrated add and drop multiplexer (drop and insert)
    • Channel bank
    • Dial plan mapping
    • Interactive voice response (IVR) support
    • Hoot and Holler over IP
  • Voice Port Interfaces:
    • Support FXS, FXO (includes CAMA), DID, E/M, BRI (S/T)
    • Per port disable
  • Fax and Modem:
    • Fax and modem passthrough
    • Fax relay
  • High-Performance Flexible Digital Signal Processor (DSP) Architecture:
    • Channel capacity
    • Flexible DSP architecture
    • Feature upgrades
  • IP Telephony Voice Gateway
  • Toll Bypass
  • Call Control Signaling
  • Telephony Interface Signaling Support
  • Voice Channel Capacity: 4 any complexity codec


  • Additional Features:
  • Cisco IOS Software and Platform Support
  • Traditional Circuit-Switched PBX Support
System Requirements:
  • Maximum Number of Network Module (NM-HD-1V) Allowed:
  • Cisco 2600XM Series multiservice platforms: 1
  • Cisco 2691 Multiservice Platform: 1
  • Cisco 3640/A Multiservice Platform: 3
  • Cisco 3660 Series multiservice platforms: 6
  • Cisco 3725 Multiservice Access Router: 2
  • Cisco 3745 Multiservice Access Router: 4
  • Cisco IOS Software Version:
  • Cisco 2600XM Series - Cisco IOS Software Release 12.2.(15)ZJ "Plus" images
  • Cisco 2691 - Cisco IOS Software Release 12.2.(15)ZJ "Plus" images
  • Cisco 3600 Series - Cisco IOS Software Release 12.2.(15)ZJ "Plus" images
  • Cisco 3700 Series - Cisco IOS Software Release 12.2.(15)ZJ "Plus" images


  • Requires one Cisco VIC:
  • VIC2-2FXS
  • VIC2-2FXO
  • VIC2-4FXO
  • VIC2-2E/M
  • VIC-2DID


  • Use Cisco CallManager version 3.3(3) for MGCP support
  • Cisco 2600XM Series
  • Cisco 2691
  • Cisco 3600 Series
  • Cisco 3700 Series
Certifications & Standards:
  • FCC Class B device

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