The reason this may not be working is because of NAT. H.323 does not work (very well) with NAT. When using nat and VOIP once side hears the audio and the other side does not. So may want to check to see if you are using NAT on your VPN connection.
We have had the same problem with a vpn-3030 and IPSEC client. The app we are using (Lucent Softphone) connected to the phone switch, but wouldn't pass audio. Just for fun, we tried connecting with a pptp tunnel, which allowed us to use the app without a problem. During consultation with Lucent, we were told this is a common problme with IPSEC vpn's and h.323 traffic. We are still working to find a solution to this as the PPTP tunnel isn't what we want to use. You might want to try this and see if it resolves your problems.
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...