Installation guide
MyPBX  U5XX  Administrator's  Guide 
www.yeastar.comPage144 
2.2 Change the default password for SSH 
We can use the Linux command passwd to change root password of MyPBX. 
1.    Login via putty.exe 
Figure B-4 
2.    The default username is root and the default password is ys123456. 
Figure B-5 
3.    Use command passwd to change the root‟s password 










