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Check that the correct comm type is set.
If you are getting connect errors, the terminal might not 'hear' the dial tone, try disabling dial tone check (see below).
Confirm if the merchant needs a dial prefix or pause.
Check Terminal Comm settings:
Try changing the baud rate (see below)
Check that the appropriate auth numbers are set on the terminal (Contact Support for assistance)
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Analog vs VOIP/Digital
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Press Menu
Press 6 for Communication
Key-in the password (today's date- MMDDYYYY) and then press Enter
Press 6 for Dial Parameters
Press 2 for Dialing Prefix
Key-in the Dialing Prefix (or a comma for a pause) and press Enter
To change the baud rate
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