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Gain Control on ISDN Channel Groups
32 D-Channels per IMG over T1/DS3
24 D Channels over or E1 (21 bearer + 3 signaling spans)
ITU-T Q.921, Q.931-based
Incoming B channel Negotiation
Bearer Capabilities Override (see IMG 1010 - Bearer Capabilities Override)
Supported Variants
T1 Network Side Variants
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