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The Adtran 4200305L1 can convert a T1 circuit of 23 bearer channels (B) + 1 data channel (D) into a PRI circuit of 24 bearer robbed bit signalling (rbs) channels and vice versa
Rapid Spanning Tree Protocol
The ShoreGear 50V supports a total of 50 voicemail mailboxes
20 programmable buttons on the IPT2020 allow users to configure various line appearances however you see fit
Adtran Atlas 800 Series 8-Channel Voice Compression Module 1200221L1 Phone Systems The Adtran 4200305L1 can convertAtlas 800 Series 8 Channel Voice Compression Module 1200221L1 Description: The Adtran 1200221L1 is an 8 channel voice compression module for Atlas 800 series gateways. The 1200221L1 supports G. 723. 1 compression on eight B channels from a T1 or PRI circuit. With 6: 1 compression ratio compared to traditional G. 711 conversations, the 1200221L1 can support up to an extra 40 calls across the 8 channels (48 total). The 1200221L1 supports fax detection
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