TWINCOM 144/DF

Manufacturer: Twincom
Model: 144/DF
Latest Firmware Revision Tried: V1.270 TR14-Jxxx-001
Recommended Firmware Revisions: N/A
Last Updated: Date: 1998/10/12 20:47:51 $

CLASS 1 SUPPORT

- RTS/CTS is not honored while sending/receiving page data; use `AT&K4` for software (XON/XOFF) flow control

CLASS 2 SUPPORT

- Changing DCD handling can cause the modem to drop DSR; if done during initialization this can cause the fax server to get confused; be sure that the setting loaded from NVRAM on reset agrees with the value specified in the config file (`&C1` by default);
- Instead of the normal `&D3` setup string for RC144AC-based modems, `&D2` should be used (note that this configuration must be done manually as faxaddmodem is incapable of distinguishing between RC144AC-based modems)
- The line counts in the +FPTS result code during a reception are total nonsense; the only way to deduce the number of lines in a received page of data is to parse the data on the host
- The modem has frequently been observed to just lockup during message receive (i.e. `AT+FDR`); it dropped DCD to the host but did not return <DLE><ETX> and/or a `+FHNG` code
- In testing the modem locked up during transmission to a Multi-Tech 1432BA modem and failed to respond to the host dropping DTR

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