I am using cnPilot R201 Router + ATA for my customers.
If i put the WAN in PPPoE mode with direct public ip address on the router, the SIP account is hacked and someone call all around the world. I have changed password of router and Sip Account. I am using firmware 4.3.4-R8 but without success.
Anyone has the same experience? Any solution?
Refer below KB document of potential security considerations while putting the device in PPPoE/DHCP mode with direct public IP address.
Please make sure that user/ISP should change Non-default username/Password for different user types (Admin, Normal, and Basic) and READ/WRITE community string to non-default values in the router.