The Account is sucessful register but it is unable to Call in / out or Fax in / Out.
话机接在线上，然后摘机，在设备上执行命令：show subscriber 查看哪个用户state为busy就说明哪个线是好的
( Pick up the Phone / Fax Machine , then Type : show subscriber to check the Line status : Offline / Busy / On Hook
config add subscriber asi slot x dn xxx startuserno 1-32
The basic configuration like Prefix , Office Route , Sub PBX is configured correctly.
The Account is successful register.
The Physical Cable connection is correct but there is no Tone when customer picked up the Fax Machine.
(Blue Bundle of Cable -- No 36-White , No 35 - Blue ) = Port 1 for User 1 .
Physically is solved so we will check the Logical Port configuration in the PBX.
The PBX logical Port is random or not working properly. Change to port 1 and it is working properly.
The case can be updated in the Trouble Shooting user Manual.