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Modem support is available in most serial-based drivers; however, there is no dial-up modem support for Ethernet-based drivers. A list of the serial drivers that do not support modem connectivity is as follows:

• Analog Devices Driver
• Dataforth isoLynx Driver
• Fanuc Focas HSSB Driver
• Mettler Toledo Serial Driver
• SattBus Serial Driver
• Siemens S5 (3964R) Driver
• Siemens S7 MPI Driver
• U-CON (User Configurable) Driver