恢复ATA186到初厂状态

1. Unplug the Ethernet cable.
2. Pick up the telephone handset.
3. Press the Function button on top of the ATA.
4. Enter 322873738#* for release 2.xx or 444#* for other releases.
5. Hang−up.

 

BTW: 322873738(FACTRESET)

 

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