I have a 3002 in Network Extension mode with a PC and a 7960 behind it coming into a 3005. Of course due to Network Extension mode the 3002 and everything behind it is on a different subnet than my local LAN and the CM box as well. I can register phones to the CM fine as long as I am local. When I am remote the phone does not apear to be able to reach the CM. I am tunneling everything and have the 3005 set up for IP Phone bypass. The PC can reach netrwork resources just fine. Anyone seen this before?
I have this working from my home and I am behind a 3002 over cable modem. So it should work. I am by no means a vpn guy somebody else set that part up for me. I just did the callmanager side of things. Can the callmanager ping the IP phone. Maybe it is purely a routing issue. I know it will work.
The CM cannot ping anything behind the 3002 but it can ping the private side of the 3002. I think you are correct in it is a routing issue, just a little confusing since the PC can get to the network. On another note. Since you are running voice over DSL, how would you rate it? I am considering replacing a remote workers phone line with VoIP using a 128k ISDN line. One worker, PC an phone per site. I need very good quality w/ delay and jitter and thought that ISDN would be better for trying that than DSL since this will be their business line and will they will not tolerate anything less than the quality (local telco line)they have now. They are fighting tooth and nail to keep their DSL
I am using cable modem not DSL. I think the quality is very good. When ever this comes up on the alias I was say it is great with this cavaet. If the users knows what to expect. Obviously one using a cable modem accross different service providers you have know control over end to end QOS. So as long as you know it might not be perfect sometimes then it works great. If your users expect it to be perfect and never get delay or jitter it just isn't going to happen not because of IP phones, but because you have no control over the end to end QOS.
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The short answer is that you don't.... That isn't entirely true while at
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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 ...