• GW-modem in 12-tone mode
• GW-modem in 14-tone mode
• GW-modem in 16-tone mode
• GW-modem in 18-tone mode
• GW-modem in 20-tone mode
• GW-modem in 22-tone mode
• GW-modem in 24-tone mode
• GW-modem in 26-tone mode
• GW-modem in 28-tone mode
• GW-modem in 30-tone mode

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