Numeric response codes for certain baud rates above 9600 are incorrect. There appears to be two different sets of codes - one published by Conexant, and one by Hayes. The numeric codes in tcpser are the ones from Conexant, but as this is supposed to be a "Hayes emulated" modem, the codes should be those from the Hayes standard.
Codes for Conexant of on page 3-15 of this document: https://web.archive.org/web/20151028101531/http://www.zoomtel.com/documentation/dial_up/100498D.pdf
Codes for Hayes are on page 1-28 of this document: http://www.bitsavers.org/pdf/hayes/Hayes_44-012_Technical_Reference_For_Hayes_Modem_Users_1993.pdf
Numeric response codes for certain baud rates above 9600 are incorrect. There appears to be two different sets of codes - one published by Conexant, and one by Hayes. The numeric codes in tcpser are the ones from Conexant, but as this is supposed to be a "Hayes emulated" modem, the codes should be those from the Hayes standard.
Codes for Conexant of on page 3-15 of this document: https://web.archive.org/web/20151028101531/http://www.zoomtel.com/documentation/dial_up/100498D.pdf
Codes for Hayes are on page 1-28 of this document: http://www.bitsavers.org/pdf/hayes/Hayes_44-012_Technical_Reference_For_Hayes_Modem_Users_1993.pdf