VQL - What does VQL stand for? The Free Dictionary
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The VQL codec can consistently carry 9,600 b/s modem traffic without inducing any bit errors.
The 6248 VQL Channel Bank with a TDC can carry 48 simultaneous channels of full duplex modem traffic at 9,600 b/s just the same as 48 C-5 conditioned voice grade circuits.
Of course, the VQL Channel Bank can be equipped with on the exact number of channel modules required and this will reduce costs somewhat.