We use Raptor client to VPN in our internal network. Once the VPN is established, I'm viewed as another device on our network and the rest is done through DHCP. It works fine with both the softphone and an IP phone. I haven't tried configuring NAT or PAT but I don't see why it would not work.
It should work if the phone is on one side of the NAT/PAT router and the CallManager is on the other. I am speaking about hardware phones (and possibly gateways) that use the Skinny protocol. H.323 based phones should work as well. I am not sure about the SoftPhone application.
We haven't got the NAT for the call manager to work yet, but.. it looks like you can NAT the call manager if you do a static address NAT using the command already referenced in this conversation.
The problem I'm having with NAT is that I'm doing overloading for the LAN and I'm trying to NAT the Call Manager and other internal phones, including the skinny station and gateway, h323, h225, h245, the rtp stream and the tftp server. All using one ip address. No VPN. Has anyone done this? Does anyone think it will work? What about referencing ip phones by ip address and tcp port so we can overload the rtp stream on the router?
In an interesting and somewhat related twist, here are example access list rules for allowing basic ip telephony through a firewall. Found these at this url:
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...