Customer restart the PBX U1960 ,after that when call the VU access code ,always get a answer the number you dial is busy .
The number you dial is busy .
1.review the script of the VU ,and find that the call finally transfer to 7777 ,which is the access code of console server
2.customer didn't install the software ,but only a hardware ipphone as a console client .
3.console client need to sign in the console server first ,then can receive the call .
4.dial *65*777# in the ipphone of console client ,sign in .the call became normal .
the console client didn't sign in cause the issue .
dial *65*777# in the ipphone of console client ,sign in .the call became normal
every time restart the PBX ,or console server , the console client need to sign in .