Cisco NIM-4FXSP ISR 4000 Series 4x FXS Router Network Module

The Cisco NIM-4FXSP ISR 4000 Series is a network module designed for the 4-port FXS interface on routers. With four FXS ports, this module allows connectivity to analog phones or fax machines over an IP network. It supports high-quality voice communication with echo cancellation and jitter buffer support features. The NIM-4FXSP is compatible with Cisco's Integrated Services Routers (ISR) 4000 series, providing seamless integration into existing networks without compromising performance or reliability. Its durable construction ensures long-term usability in diverse deployment scenarios requiring reliable analog phone connections for business communications. Cisco NIM-4FXSP: 4-Port Network Interface Module - FXS, FXS-E and DID.