> 2.13.1 | Fax initialization

> This section comprises the subsections Description, Used AT Commands, Flow Chart, Hints and Example. To move to these subsections please use the Navigation Frame or the appropriate buttons on the toolbar.

> 2.13.1.1 | Description

> The following example shows the fax initialisation. This initialisation partly happens automatically triggerd by the application (e.g. WinFax Pro) or the fax device. In WinFax Pro certain initialising sequences (e.g. „AT&C1&D2S7=55“) and the Flow control „AT\Q3“ can be preconfigured. Note that certain AT commands can only be used for fax Class 1 or for fax Class 2. Fax class1 is initialised with the AT commands listed below (mandatory). Fax Class 2 uses additional commands (e.g. „AT+FBOR“ etc.).

> 2.13.1.2 | Used AT commands

> Class 1 and 2:

> Command | Explanation
> AT&F | Set all current parameters to manufacturer defaults
> AT&C | Set circuit Data Carrier Detect (DCD) function mode
> AT&D | Set circuit Data Terminal Ready (DTR) function mode
> AT&S | Set circuit Data Set Ready (DSR) function mode
> ATS0 | Set number of rings before automatically answering a call
> ATS8 | Set number of seconds to wait for comma dialing modifier
> AT\Q | Flow control
> ATE | Enable command echo
> ATI | Display product identification information
> ATM | Set monitor speaker mode
> ATL | Set monitor speaker loudness
> ATX | Set CONNECT result code format and call monitoring
> ATV | Set result code format mode
> AT+FCLASS | Fax: Select, read or test service class

> Only Class 2:

> Command | Explanation
> AT+FBOR | Query data bit order
> AT+FCR | Capability to receive
> AT+FDCC | Query or set capabilities
> AT+FDIS | Query or set session parameters
> AT+FLID | Query or set the Local Id setting capabilities

> For further details about the commands see [2].

> 2.13.1.3 | Flow chart

> Figure 97: Fax initialization - part 1
> Figure 98: Fax initialization- part 2
> Figure 99: Fax initialization- part 3
> Figure 100: Fax initialiization- part 4

> 2.13.1.4 | Hints

> • | Ιf there is no dedicated fax number associated with the SIM card, AT+CSNS=2 can be used to switch an incoming voice to a fax call.

> 2.13.1.5 | Example

> Phase A starts with the sequence „AT&C1&D2S7=55“sent by the application and ends with the call setup („ATD<Number>“).
> Figure 101: Start fax initialization- Fax Class 2