RP56D pumps equivalent, modem data pumps.
* Downloadable MDP code from the host/DTE
* 2-wire full-duplex − V.90 and K56flex (RP56 models) − V.34 (33.6 kbps) (RP56 and RP336 models) − V.32 bis, V.32, V.22.
Downloadable architecture allows upgrading of MDP code from the host/DTE. In V.90/K56flex mode (RP56), the MDP can rece.
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