Built-in Channel Service Unit (CSU)
Software-selectable T1 or E1 operation
Echo cancellation
D4, ESF, or CEPT framing
ISDN PRI capability: 23 B-channel + 1 D-channel or 30 B-channel + 1 D-channel
AMI, ZCS, B8ZS (T1) or HDB3 (E1) line codeing
Fractional T1 support
Compatibility
Supported in G350, G450, and G700 Media Gateways
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