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SIP-based telephony features
The 1200221L1 supports G
The 1202361L2 is the second generation of the VPN gateway
The Toshiba EKT6520-SD offers flexible programming in a deskphone
Adtran ISDN BRI Module IQ TSU 1204004L2 Multiplexers SIP-based telephony featuresAdtran ISDN BRI Module IQ TSU 1204004L2 Description: The 1204004L2 is a BRI module for the Adtran IQ TSU. The 1204004L2 offers 2 B channels + a D channel through a RJ 45 interface. The module supports 1 B + 1 D channel with 56 64k DDS in an IQ 310. The 1204004L2 re establishes physical layer and frame relay signalling in the event of primary link failure. loss of LMI, or loss of PVC network restoral independent of router. The Adtran 1204004L2 is
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