Remote location there is only one cisco 9951 IPphone,after changing gateway model is 2900 and its version is 15.2 phone is going to unregister mode ,our call manager showing "unknown" state manual configuration ip phone setup dhcp :disable" we are c...

Remote location Cisco IPphone(9951) Showing "unknown" status we have only one ip phone there,All the configuration is no problem for gateway and switch We are try  to all the possiblity finaly Factory reset the ip phone but no chane occur,chande the ...

Hai... We are facing backup issue in cucm,I checked backup server SFTP its fine some time backup not happent,its showig "ERROR"

haii,,,, We are facing Alphanumeric Caller ID issue for analog line, user get the incoming call its displaying alphanumeric eg:6534YV376,,, Call flow:::::: IPPhone or Third PArty SIp Phone>>sip>>CUCM >>Sip>>VOICE GW (pri)>>Service provide How can...

haii,,,, We are facing Alphanumeric Caller ID issue for analog line,we are open this issue Cisco TAC but not solved when analog line get incoming call to analog line "Caller ID showing(number and name) both are mixed" Call flow:::::: IPPhone or Thi...