Network information can't be updated dynamically

[Li, Zhigang]

Hi,

>The only thing that oFono core will poll periodically is the network
>operators.  Everything else must be handled by the driver.  For network status
>updates atmodem sends an AT+CREG=2, quoting 27.007:
>
>"2 - enable network registration and location information unsolicited result
>code +CREG: <stat>[,<lac>,<ci>[,<AcT>]]"

How ofono known the changed network status?  Registed -> roaming 

Suppose UI want to show the status, which interface can be used?

>>For signal strength oFono explicitly doesn't poll this in the reference
>driver.  This is because vast majority of vendors out there have their own
>specific command to turn on period signal strength updates.  If you want this
>feature, you need to submit a patch that enables this support explicitly.
>
Ok, we handle it as special command of modem.

>Regards,
>-Denis

Thanks 
Zhigang

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