1. Outgoing FAX message and data call – When the connected device is able to send CNG tone (1100Hz for fax 1300Hz for modem), the gateway recognizes recognises whether the call represents fax or data, the connection will be established automatically. When the terminal does not support CNG tones or some problems with recognition occurred, you have to dial in front of the destination number code *01* for fax call or *02* for data call. This code is used to inform the Gateway that the call is a fax or data call.
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