2N Analogue UMTS gateway 2N SmartGate UMTS - Manual, 1699 v1.1.0 - Manual (Page 78)

Troubleshooting 6.2
78
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2N® SmartGate UMTS does not communicate with PC
u Check the serial cable connection.
u Check the COM number setting on PC.
u Check the COM parameters (1200-115200 bps, 8N1).
u 2N® SmartGate UMTS is not registered to UMTS/GSM network.
u A dialing or outgoing call establishing process takes place on SmartGate
UMTS.
u An incoming call is ringing on SmartGate UMTS.