Refurbished
Cisco SM-X-16FXS/2FXO High Density Analog Voice and Fax Module for ISR4000Series
$ 8,249.98
Includes PLG Automations 1-Year Warranty
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Product Description
The Cisco SM-X-16FXS/2FXO is a high-performance service module designed for Cisco Integrated Services Routers (ISR). It provides 16 Foreign Exchange Station (FXS) ports for connecting analog phones and fax machines, along with 2 Foreign Exchange Office (FXO) ports for connecting to traditional telephone lines or PSTN. This module enables advanced voice and fax services, offering flexibility and scalability for integrating legacy telephony systems into modern IP networks. It's ideal for branch offices needing reliable voice communication and cost-effective integration with existing telephony infrastructure.
Technical Specifications
- Model: SM-X-16FXS/2FXO
- Ports:
- 16 x FXS (Foreign Exchange Station) ports
- 2 x FXO (Foreign Exchange Office) ports
- Compatibility: Cisco ISR G2 and 4000 Series routers
- Voice Features: Supports various voice protocols, including SIP, H.323, and MGCP
- Fax Support: Provides fax services with support for T.38 and G.711 passthrough
- Power: Powered by the host router's power supply
- Form Factor: Service Module (SM)
- Voice Quality: Advanced echo cancellation and digital signal processing
- Management: Integrated with Cisco IOS for configuration and management
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All Products Come With PLG Automation's 1-Year Warranty.

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