HP 0231A63N - MSR 16-Channel Voice Processor Module (VPM) - Performs voice traffic compression/decompression, echo cancellation (EC), and comfortable noise generation (CNG) - Plugs in the VPM slot on the motherboard Retail
HP JF253-61101 - MSR 1-port E1/CE1/PRI SIC module (SIC-EPRI) - Smart Interface Card (SIC) E1/CE1/PRI compatible interface module with one DB 15-pin connector that handles E1 data streams, channelized E1 access, and ISDN PRI function Retail
HP 0231A61R - MSR 1-port T1-voice SIC module (SIC-1VT1) - Smart Interface Card (SIC) voice interface module with one RJ-45 connector that hands dense voice signals in VoIP system - Allowing access of up to 23 channels of voice signals Retail
HP 0231A61Q - MSR 1-port E1-voice SIC module (SIC-1VE1) - Smart Interface Card (SIC) voice interface module with one DB 15-pin connector that handles dense voice signals in VoIP system - Allowing access of up to 30 channels of voice signals Retail
HP 0231A61M - MSR 1-port 10/100/1000Mbps SIC module (SIC-1GEC) - Smart Interface Card (SIC) electrical and fiber Ethernet interface module with one combo interface port (either 10/100/1000Mbps autosensing RJ-45 port or 1Gbps Small Form-factor Pluggab Retail
HP 0231A60U - MSR 1-Port T1 voice MIM module (MIM-1VT1) - Multifunction Interface Module (MIM) with one RJ-45 connector that handles dense voice signals in a VoIP system - One CE1/PRI port that allows access of a maximum of 24 channels of voice signa Retail
HP 0231A55T - HP router 2-port FXS(Foreign eXchange Subscriber interface), MIM(multifunction interface modules) Retail
HP JF254-61201 - MSR 4-port T1/fractional T1 MIM module (MIM-4T1-F) - Multifunction Interface Module (MIM) with four RJ-45 connectors that transmits, receives, and handles T1 data streams Retail
HP JF254-61101 - MSR 4-port T1/fractional T1 MIM module (MIM-4T1-F) - Multifunction Interface Module (MIM) with four RJ-45 connectors that transmits, receives, and handles T1 data streams Retail
HP JF257-61101 - MSR 4-port E1/fractional E1 MIM module (MIM-4E1-F) - Multifunction Interface Module (MIM) with one DB-25 connector that transmits, receives, and processes E1 data traffic and can be used in FE1 operating mode Retail
HP 0231A50R - MSR 4-port ISDN BRI S/T voice interface MIM module - Multifunction Interface Module (MIM) that processes ISDN traffic - Can be connected to TE devices to allow voice traffic to be forwarded through a router WAN interface to implement Vo Retail
HP 0231A52V - MSR 4-port E&M MIM module (MIM-4E&M) - Multifunction Interface Module (MIM) Ear and Mouth (E&M) analog trunk interface module with four RJ-45 connectors that provides and transmits voice signals over data communications networks Retail
