ATLAS 550 User Resource Module. Performs G.726 (ADPCM) compression at 16K and 32K, and/or G.711 (uncompressed voice) at 64K for packetized voice applications. Provides 32 channels of packetized voice in ATLAS 550 frame relay applications and currently is compatible only with other ATLAS 550 systems. Does not present any physical interfaces and is a plug-on board for all user interface modules and the resource host module.
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Introduction
ADTRAN, Inc. is a leading global provider of networking and communications equipment with an innovative portfolio of more than 1,600 solutions for use in the last mile of today’s telecommunications networks. Widely deployed by carriers, distributed enterprises and Small- and Medium-sized Businesses (SMBs), ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major U.S. se