Quality of Service: To converge voice and data traffic onto a single frame relay trunk, voice-capable FRADs
must employ complex QoS features that rival those of asynchronous transfer mode.
A few years ago, many users of frame relay networks simply shopped around for the cheapest FRADs
, specifically designed to support routing, legacy data and voice requirements, differs from previous FRADs
in four crucial aspects:
The services are based on AT&T-installed FRADs
, which assemble packets from legacy SNA and bisynchronous traffic into data frames tailored for frame relay transport.