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Cisco 4400 Series Router module NIM-SSD=
The Cisco 4000 Series Integrated Services Routers (ISRs) host the Cisco network interface modules (NIMs), which have evolved from the enhanced high-speed WAN interface card (EHWIC), increasing port density and module capability. Up to three integrated NIM slots on the 4000 Series allow for flexible configurations. The NIMs support online insertion and removal (OIR), reducing the downtime required for new or replacement modules.
The available modules include 2-port and 4-port foreign exchange station (FXS), direct inward dial (DID), foreign exchange office (FXO), a combination of 2-port FXS and 4-port FXO, 4-port ear and mouth (E/M), and 2-port and 4-port basic rate interface (BRI) (Figure 1). The BRI cards support only voice features. The NIMs have a dedicated digital signal processor (DSP) that will be used for time-division multiplexing (TDM) analog voice services. Table 1 lists the available modules.
These NIMs are not supported with the Cisco 2900 and 3900 Series ISRs.
Caller line ID
G.711, G.729a, and G.726
G723 and Internet Speech Audio Codec (iSAC); Internet Low Bit Rate Codec (iLBC) is on the roadmap
Fax detection, pass-through, and relay (T.38)
Modem detection and pass-through
Echo cancellation
Voice activity detection
Comfort noise generation
Real-Time Control Protocol (RTCP)
Acoustic shock protection
Noise reduction is on the roadmap
Real-Time Transport Protocol (RTP)
RFC 4733 Digit Relay