Dear All,
I have a strange case that in three Wireless phones Cisco 7921 which registered on CUCM 4.3sr1b, the problem is when I make a call from this IP phone , all the placed calls history be the last dialed number (i.e. all placed numbers be the same number).,the running firmware is (CP7921G-1.2.1 ).
Is there any advice for this issue rather than upgrade the firmware?
Thanks,
Ahmed Ellboudy