The Digital J1 Packet Voice Network Module provides a flexible and scalable J1 voice and fax solution for the Cisco 2600, 2600XM, 3600 and 3700 series multiservice Modular Access routers and supports up to 30 voice channels in a single network module. A single packet voice network module supports connections to Japanese Private Branch Exchanges (PBXs), and is compliant with the J1 TTC JJ20 standard. The network module eliminates the need to use expensive external third-party T1 to J1 converter products. This network module is ideal for enterprise branches, large businesses and service providers wishing to migrate to packet-based multiservice infrastructures. It also enables the deployment of new packet voice applications while reducing recurring telephony charges.The Digital J1 Packet Voice Network Module uses a real-time CPU and 12-channel packet voice digital signal processing (DSP) modules (PVDM-12) which support all functions needed to provide the highest levels of voice fidelity and quality, reducing the processing burden from the Cisco 2600, 3600 or 3700's main CPU. The packet voice network module includes a VIC-1J1 voice interface card which offers a single port J1 voice/fax interface.Now, enterprise offices of several hundred users and managed network service providers can deploy multiservice networking using a single box solution.