I just encountered a problem that the arp aging time of Cisco 7821 phone. How long is the aging time of this phone type? How to change the aging time of the Phone?When phone A calls Phone B， Phone A sent the RTP packet of right destination MAC. But t...
Hi，
we are facing issues with registration about Cisco IP phone CP 7821 with CIsco router 2921。 The IP phones are on the branch and CIsco router 2921 are on the headquarter.There is an WAN dedicated line between the branch and the headquarter。 We ha...
When I upgrade CUCM which version is 10.5.2 to CUCM 14 by Fresh Install with Data Import, it get an error.
I have checked the destination server IP and the SFTP directory and it's correct. How should I troubleshoot ?
I deployed a new ISR4431 on a customer side and I have some questions regarding smart licenses.
The ISR was with the version 17.03 delivered and the smart license is enabled by default.
I have add 51 sip stations and the station can registerd t...
I encountered a problem that the cucm display an error "The phone Update failed. The system has exceeded its time limit to resolve license non-compliance issue. No more provisioning operations are allowed until the license compliance issues are...
