Steps to be followed for license issue on UC suite.
1.CTI - disable it and enable it again.
2.RPCTI services (on server with UC advance service) wait for 10 sec 3.on UC advance service click reset service wait and check if the reset is successful.
If not resolved by above steps ,try below settings:
Use Tel Pro :
PRG 90-44-01 (only accessible via Handset Programming).
License Code [000053***] (Enter the numbers including the 3 stars for a total of 9 digits) then press [Transfer].
you will be prompted with the following "Delete? (1:Yes)" you then select [1] and press the [Transfer] Button to completed the process.
Restart the UC server and Client