Product Description
Cisco Fourth-Generation 256-Channel High-Density Packet Voice Digital Signal Processor Module (Factory Upgrade from 64-Channel) - Voice DSP module - for P/N: C1-Cisco 4431/K9, C1-Cisco 4451/K9, ISR4431-V/K9-RF, ISR4451-X-AXVK9-WSOther Details
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