Comtrol AT Commands for SmartACFL User Manual

Page 100

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Command Reference Manual

3-80

Conexant

100722A

If an AXCELL™ solution is used, a transmit level of -10dBm is required, therefore the following initialization string should be
used:

Cell Site

AT &F -SEC=1,10

It is recommended that systems be set up if possible with separate modems to receive calls from other land based modems
and cellular modems. This is so that land based users that experience high network attenuation do not have connection
problems when communicating to modems configured for cellular operation.

The above configurations are the minimum additional AT commands may be issued to change the result messages etc.,
AT&F is used to ensure that the modem is in a know state.

Table 3-14 summarizes the mode and resulting transmit levels for both modems depending on their configuration.

3.4.3.2 Fax

Configuration

It is recommended that fax transmissions be configured to operate at 9600 bps in V.17 mode or 7200 bps in V.29 mode.

3.4.3.3 Cellular Phone Configuration
To achieve the best operational performance, a cellular data connection should be attempted in a location where adequate
signal strength is observed for the cellular phone. This condition can be easily monitored on some phones with signal strength
indicator. In locations where even voice calls are unreliable, data connections should not be attempted. Under some
circumstances a special high gain antenna may improve performance.

Additional information regarding the use of the cellular phone and cellular network should be obtained from the service
provider and or cellular phone manufacturer.

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