Cisco Two-slot IP Communications Voice/Fax Network Module NM-HD-2V= Hoja De Datos
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DATA SHEET
CISCO IP COMMUNICATIONS VOICE/FAX NETWORK MODULE
Cisco IP Communications Voice/Fax Network Modules for the Cisco 2600XM Series, Cisco 2691, Cisco 2800, 3600, 3700,
and 3800 Series Voice Gateway Routers
Figure 1.
NM-HD-2VE with one VWIC-2MFT and one VIC-4FXS/DID
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 Cisco 2600XM and 2800 Series, Cisco 2691, 3640, and 3660, and Cisco 3700 and 3800 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 CallManager Express, the Cisco IP Communications voice/fax network module is a complete IP Communications solution for the business
branch.
Figure 1 shows the IP Communications voice/fax network module with one VWIC-2MFT-T1-DI and one VIC-4FXS/DID.
The Cisco IP Communications voice/fax network modules for the Cisco 2600XM Series, Cisco 2691, and Cisco 2800, 3600, 3700, and 3800 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, and ATM networks. 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