General Information on Modems
Use the Modems function to perform modem maintenance. You can list, add, change or delete modems using this function.
Further Information
Pager Notification Support
Modem Administration
Modem Filename
Enter the modem filename. This must end with a ".modem" extension only.
Modem Name
Enter the modem name.
Initialization String
Enter the initialization string. The characters in this field are sent to the modem in command mode to initialize the behaviour of the modem. Make sure you set your initialization string to do the following:
Upon drop of Data Terminal Ready (DTR), your modem should hang up, not reset and return to the command mode.
Your modem should give verbal response codes to commands. These responses should correspond to those in the "Valid Command Response" and "Valid Connect Response" fields of the modem file in use.
The modulation speed should either be fixed at the DTE speed (or the speed of the last command) or it can be set to automatically detect the other modem's speed. No matter what modulation speed is used, the DTE speed must not be changed. For example, if your modem is configured to auto-adjust the modulation rate, and the DTE is sending commands to your modem at 1200 baud (the rate given in your paging carrier's database record), but the modem actually connects at 300 baud, your modem will be expected to buffer up the speeds so that the DTE can remain at 1200 baud.
Your modem might be set to echo characters while in command mode. If so, the modem file must indicate this in the "Does Modem Echo Local" field.
The modem should not echo characters while in connect mode. The initialization string should include the command to hang up the modem and disable Auto-Answer.
Cmd. Mode String
This field should contain the set of characters that should be sent while in connect mode. This forces the modem into command mode without hanging up.
Cmd. Terminator
This field indicates the character that should be appended to the end of all command sequences to force the modem to accept the command. Normally this is just a carriage return. If you are using a backward slash, put another backward slash before it. For example, use '\\r' for '\r'.
(If you use a single '\' instead of the double '\\' you might see peculiar SMIT/smitty behaviour.)
Hangup Command
This field should contain the command to force your modem to hang-up after dialing. The default that works with most modems is ATH0.
Valid Cmd. Response
This field should contain the string that your modem will respond to accept commands. Normally OK is sufficient.
Valid Conn. Resp.
This field should contain the string that your modem will output when a carrier has been detected and a connection has been made. Most modems use CONNECT as a default.
Outside Line #
This field should contain the outside line number used to access the outside exchange. Usually, this will be followed by a (p) to notify the modem about a temporary pause.
Does Modem Echo Local
This field should contain either Y (Yes) or N (No). If Yes, the modem will echo local characters while in connect mode.
Dial Command
This is the command sent to the modem in command mode and will be followed by the "Outside Line #" field and the paging carrier's phone number. The default is ATDT which works for most modems.
Dial Pause
This field should contain the character used in a dial string to force your modem to wait for a short period of time (about one second) before continuing with the dial string. This is normally a comma (,).
Dial (#) Symbol
This field should contain the character used in the dial string to force your modem to dial the touch tone corresponding to the # sign. This is normally just the pound sign (#) itself.
Dial (STAR) Symbol
This field should contain the character used in the dial string to force your modem to dial the touch tone corresponding to the * sign. This is normally just the star sign (*) itself.
Command Mode Character
This field should contain the character to append the dial string in order to force the modem back into command mode after completing the dial string. The default is a semi-colon(;). This field should contain the set of characters that should be sent while in connect mode. This forces the modem into command mode without hanging up.
Baud Rate
Select the default Baud Rate.
Data Bits
This field should contain the default data bits for the modem. Select 7 or 8.
Stop Bits
This field should contain the default stop bits for the modem. Select 1 or 2.
Parity
Click Even, Odd, or None for the default parity.
Default Device
This field should contain the default device. This device file must exist under the /dev directory and should match with your configured serial port.
OK
Press the "OK" button to save changes and close the window.
Cancel
Press the "Cancel" button to close the window without saving any changes.