panasonic KX-TVS200 vm/ kx-td1232 - hacked

[kx-tvs200_noob]

pbx got hacked, someone was calling international calls from the pbx/ vm system - got call from ATT about unusual activity - asking me to take measure - I've seen this in the past that hackers logs into the vm system and then dials international calls - how do I change settings on the Panasonic KX-TVS200 vm? reset passwords? but how? i was able to login to the vmbox using putty / serial connection

thanks

 

[obtsystems]

Putty is the way to programme that system

Most important thing is to put vm ports on the phone system into cos 7

Mailbox 998 and 999 will need a strong password. You can do this through the extensions

 

[kx-tvs200_noob]

Thanks for you response, how do I make sure the port are on the cos7 and doesn't let me pick the password
please see attched image,
thanks

 

[kx-tvs200_noob]

 

[WhiteGooner]

The class of service setting needs to be done on the pbx not the voicemail.