Features, Features -3 – Black Box COMPACT T1 MT850A User Manual
Page 477

Compact T1 - Release 6.1
14-3
Router (CMG) Card
Features
Features
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Provides up to 48 channels of uncompressed voice mediation (VoIP) or T1/DS0 
channels 
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Up to eight T1s of VoIP conversion per Compact T1
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Supports voice/fax/modem calls, voice compression, silence suppression, 
comfort noise generation, and echo cancellation
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Utilizes standards-based softswitch call control: MGCP (IETF version 0.1, 1.0, 
1.0 bis, and, NCS)
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Supplies 10/100Base-TX Ethernet LAN Interface for mediated voice or local 
LAN traffic 
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Enables WAN routing with IP packet switching, filtering and policy enforcement
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Supports routing protocols: RIP V1 & V2
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Includes WAN data protocols (T1 WAN): PPP, PPP over Frame Relay, Frame 
Relay (RFC1490) and ML-PPP 
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Supports multiple softswitch types
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Enables a variety of Centrex and CLASS services
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Configurable tone databases allows tone files support world-wide tailoring of 
call-progress tones and cadences to meet in-country specifications
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Selectable FXS impedances provide world-wide coverage of line impedance 
variations and companding types
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Support for cross-connects between data cards (CMG, IP Router, and V.35) 
across the backplane enhances flexibility of data network configurations and 
connections to existing data infrastructure
