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1.1 root 1:
2:
3: modemcap Technical Information modemcap
4:
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7:
8: Modem description language
9:
10:
11: modemcap is a language for describing modems to your system. It
12: resembles the termcap language in its syntax, although the two
13: are by no means identical. With modemcap, you can describe your
14: modem to any program that automatically dials out on your modem;
15: this should spare you the tedium of continually describing your
16: modem to one program after another.
17:
18: The copy of /etc/modemcap included with your release of COHERENT
19: already contains descriptions of many popular modems; the chances
20: are good that yours has already been described for you.
21:
22: Each modemcap command is one of three types: flag, string, or
23: number. A flag command signals that your modem is performs a
24: particular action or has a particular feature. A string command
25: gives the command that your modem recognizes to perform a par-
26: ticular action. For example, many modems recognize that the
27: string at means that you want to gain its attention. Finally, a
28: number command sets a value or parameter for your modem, such as
29: the highest baud rate it recognizes.
30:
31: The following table describes each modemcap command:
32:
33: _N_a_m_e _T_y_p_e _M_e_a_n_i_n_g
34:
35: aadd number Delay after aass
36: aass flag Numbers are in ASCII, not binary
37: aatt string Attention string, forces model into command mode
38: from online mode
39: bbdd number Highest online baud rate
40: bbll number Alternate lower baud rate
41: ccee string Command end string (required if CS is present)
42: ccll string String from modem on remote connection at BL baud rate
43: ccoo string String from modem on remote connection at BD baud rate
44: ccss string Command start string
45: ddee string End dial command string (required if DS is present)
46: ddii flag Modem has a dialer
47: ddss string Start dial command string
48: iidd number Delay after IS
49: iiss string Initialization string, resets modem to offline,
50: ready to dial
51: hhcc flag Modem hangs up when DTR drops
52: hhuu string Hangup command
53: tttt flag Modem dials touchtone by default (or DS is set
54: that way)
55:
56: All commands, such as ddss (dial command) and hu (hang up) will be
57: prefixed by cs and ended with ce. If there is a common prefix
58: and suffix, use this feature. Otherwise, each command will have
59: to have the entire string built in.
60:
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64: COHERENT Lexicon Page 1
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67:
68:
69: modemcap Technical Information modemcap
70:
71:
72:
73: ***** Example Entry *****
74:
75: The following gives the entry in /etc/modemcap for the Hayes
76: Smartmodem 1200:
77:
78:
79: hy|hayes|Hayes Smartmodem 1200:\
80: :as:at=+++:ad#3:bd#1200:bl#300:cs=AT:ce=\r:co=CONNECT:\
81: :cl=CONNECT:di:ds=DT :de=:is=ATQ0 V1 E1\r:id#2:\
82: :hc:hu=H0 V0 E0 Q1:tt:
83:
84:
85: Each field is separated by a colon. A backslash `\' character at
86: the end of each line but the last lets the description extend
87: over more than one line.
88:
89: The three fields gives three versions of the modem's name,
90: separated by vertical bars `|'. The first version of the name is
91: a two-character mnemonic; this must be unique. The other two
92: versions give fuller versions of the name; these are optional.
93:
94: The following explains each field in detail:
95:
96: aass Numbers are in binary mode.
97:
98: aatt=+++ To gain the attention of the modem, type +++.
99:
100: aadd#33 Delay three milliseconds after a number.
101:
102: bbdd#11220000 Maximum baud rate is 1200.
103:
104: bbll#330000 Minimum baud rate is 300.
105:
106: ccss=AATT To initiate a command string, type AATT.
107:
108: ccee=\rr A command string is ended by a carriage-return
109: character.
110:
111: ccoo=CCOONNNNEECCTT Modem returns the string CCOONNNNEECCTT when it makes a
112: connection at 1200 baud.
113:
114: ccll=CCOONNNNEECCTT Modem returns the string CCOONNNNEECCTT when it makes a
115: connection at 300 baud.
116:
117: ddii The modem can dial a telephone number.
118:
119: ddss=DDTT Begin dialing, touch-tone mode.
120:
121: ddee= No special string is needed to end the dial
122: string.
123:
124: iiss=AATTQQ00 To initialize the modem, type AATTQQ00 VV11 EE11<rreettuurrnn>.
125:
126: iidd#22
127: Delay two seconds after entering the initializa-
128:
129:
130: COHERENT Lexicon Page 2
131:
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133:
134:
135: modemcap Technical Information modemcap
136:
137:
138:
139: tion string.
140:
141: hhcc The modem hangs up when DTR drops (i.e., it hangs
142: up when the program requests a hangup).
143:
144: hhuu=HH00 To hang up, type HH00 VV00 EE00 QQ11.
145:
146: tttt The modem dials touch-tone by default.
147:
148: ***** Currently Recognized Modems *****
149:
150: The file /etc/modemcap includes descriptions of the following
151: modems:
152:
153:
154: Trailblazer, 9600 baud
155: Trailblazer, 2400 baud
156: Hayes Smartmodem 1200
157: Avatex 2400 (clone of Hayes Smartmodem 2400)
158: Prometheus Promodem 1200
159: Signalman Mark XII
160: Radio Shack Direct-Connect 300 Modem
161:
162:
163: ***** See Also *****
164:
165: technical information, termcap
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196: COHERENT Lexicon Page 3
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