Adtran 1200221L3 Atlas 800 Series 24-Channel Voice Compression Module
G.723.1 compression protocol
6:1 compression ratio (six voice calls on a single DS0)
Compresses analog voice calls directed from channelized T1, BRI, or PRI
Compatible with ATLAS 550 and Express 5200 Series Voice Compression Modules
Supported in 800PLUS, ATLAS 810PLUS, ATLAS 830, and ATLAS 890
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