Specifications

MyPBX U5XX Administrator's Guide
www.yeastar.com Page 149
Figure B-27
6. Note
If the phenomena of toll fraud have been happened in your MyPBX system. We
are really sorry about that, then please enhance the protection level of your
firewall refer to the above steps.
In addition, please change the all password: Web GUI password, SSH password,
and all extensions password.