 | The IP Communications High-Density Digital Voice/Fax Network Modules are the latest addition to the Cisco Systems® IP Communications suite of solutions. The IP Communications High-Density Digital Voice/Fax Network Modules deliver high-density digital voice connectivity, high-density WAN connectivity, analog voice connectivity, and conferencing and transcoding capability in a network module form factor. The network modules provide enterprises, managed service providers, and service providers with the ability to directly connect the public switched telephone network (PSTN), traditional telephony equipment (such as private branch exchange (PBX), key systems, analog telephones, and fax machines), and WAN to existing Cisco® 2600XM, Cisco 2691, and Cisco 3700 Series Multiservice Access routers for either IP Communications capabilities or pure toll bypass. The IP Communications High-Density Digital Voice/Fax Network Modules flexibly operates within two different Cisco AVVID (Architecture for Voice, Video and Integra Voice/ Fax Interface Card Number of Reviews: 0 | Ratings:  | Best deal: $567 $567 - $2040 from 3 stores. |