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# ZOOM TELEPHONICS, INC.
VFP 14.4V
Modem Type Data
(synchronous/asynchronous)/Fax/Voice
Maximum Data Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus External
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------+----------+---------------------------+----------|
| Line out | CN1 | Digital Control | CN3 |
| | | (proprietary) | |
|----------+----------+---------------------------+----------|
| Line in | CN2 | Speaker | CN4 |
+------------------------------------------------------------+
Proprietary AT Command Set
See document V1404 for a full command summary.