Cisco - Expansion module - ISDN - 2 ports - T-1/E-1 - refurbished

The MIX-enabled T1/E1 port adapters provide the ability to integrate voice and data on the same T1/E1 interface without the need for an external time-division multiplexing (TDM) device. With the "drop and insert" capability, DS0-level grooming is supported, thus providing cost-effective WAN access. Ports can be configured as voice, data, or both, depending on the application requirements. Powerful management capabilities are provided with the Cisco Voice Manager 2.0 Web-based user interface for provisioning, configuration, and monitoring functions.The MIX-enabled T1/E1 port adapter enhances the multi-service solutions enabled by the enhanced digital voice adapters available on the Cisco 7200 VXR series of routers. By using the TDM capabilities of the Cisco 7200 VXR, the MIX-enabled T1/E1 port adapter can maximize the use of digital-signal-processor (DSP) resources on the enhanced digital voice adapters. The MIX-enabled T1/E1 port adapter enables the use of the DSP resource pool on the enhanced digital voice adapters for high- and medium-complexity coder/decoder (codec) voice calls. The concept of sharing the DSP resources across the TDM bus on the Cisco 7200 VXR platform is called DSP farming. With the DSP farm capability, a total of 20 T1s or 18 E1s of voice can be terminated on a Cisco 7206 VXR Series Router, providing a highly cost-effective solution.