Introduction

The Cisco® IP Communications voice/fax network modules provide enterprises, managed service providers, and service providers the ability to directly connect the public switched telephone network (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. This set of Cisco IP Communications voice/fax network modules delivers the most versatile combination of analog and digital voice and data capabilities in a single network module. As a completely integrated component of the Cisco IP Communications solution including Cisco CallManager, Cisco IP phones, Cisco Unity‘™ unified messaging software, Cisco IP Contact Center (IPCC), and the entire line of Cisco IP Communications products, the Cisco IP Communications voice/ fax network modules are a cornerstone of Cisco AVVID (Architecture for Voice, Video and Integrated Data). When used in a Cisco voice gateway router with Cisco CallManager, Survivable Remote Site Telephony (SRST), or Cisco IOS® Telephony Service, the Cisco IP Communications voice/fax network module is a complete IP Communications solution for the business branch.

The Cisco IP Communications voice/fax network modules 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). Cisco IP Communications solutions provide the means for integrating voice and data within a single network, allowing users to take advantage of services such as IP telephony, integrated services, and toll-bypass while providing an opportunity to improve productivity. By operating on Cisco IOS Software, these solutions incorporate advanced quality-of-service (QoS) features, intelligent network queuing, and standards-based encapsulation, providing efficient direct transport of both voice and fax over IP, Frame Relay, andATMnetworks. Cisco IOS Software solutions enable time-sensitive voice traffic to be moved across even low-bandwidth WAN connections with the priority and quality that voice and fax demand. Transporting voice over IP networks continues to provide transport flexibility because IP can be routed across a multitude of WAN technologies (leased lines, Frame Relay, and ATM) along with providing direct connectivity to the desktop.

Product Part Number
NM-HD-1V

Description
1-slot IP communications voice/fax network module.

Application
Supports up to four channels of analog/BRI voice using any supported coder-decoder (codec). (No support for T1/E1 or data WAN.)

Photos

NM-HD-2VE with one VWIC-2MFT and one VIC-4FXS/DID