Cisco 4400 Series Packet Voice/Fax DSP Modules

Part Number	Description
PVDM4-128	128-channel DSP module
PVDM4-128=	128-channel DSP module
PVDM4-256=	256-channel DSP module
PVDM4-256	256-channel DSP module
PVDM4-32=	32-channel DSP module
PVDM4-32	32-channel DSP module
PVDM4-64=	64-channel DSP module
PVDM4-64	64-channel DSP module
PVDM4-32U256	PVDM4 32-channel - 256-channel factory upgrade
PVDM4-32U128	PVDM4 32-channel to 128-channel factory upgrade
PVDM4-32U64	PVDM4 32-channel to 64-channel factoryupgrade
PVDM4-64U128	PVDM4 64-channel to 128-channel factory upgrade
PVDM4-64U256	PVDM4 64-channel to 256-channelfactoryupgrade