> could not succeed in authenticating H323 endpoints behind firewall. SIP devices register without issues.
This typical case we see time mismatch between Endpoint and VCS.
As Andreas suggest, please make sure Endpoint and VCS has same NTP server configured or each NTP server (on Endpoint and VCS) provide same time information as H.235 authentication will be encrypted and decrypted by using time on device.
However SIP doesn’t use this method for credential exchange that is reason SIP UA and H323 Endpoint registration may see different result even using same credential account information.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...