An IP-to-IP gateway is a separate router that provides a proxy (or front end) for a system that does not support H.450, such as Cisco Unified CallManager. The IP-to-IP gateway can be placed between Cisco Unified CallManager and a CME router, and it provides H.323-to-H.323 call connections to terminate and re-originate calls for transfers and forwards to endpoints that do not support H.450.
Cisco Unified CallManager Express can be directly integrated with Cisco Unified CallManager using an H.323 interface without the IP-to-IP gateway. However, because Cisco Unified CallManager does not support H.450 specifications, supplementary services such call transfer and call forward initiated from Cisco Unified CallManager phones will require the media to be hair-pinned (over the WAN in some cases) through Cisco Unified CallManager even though the Cisco Unified CallManager phones might not be involved in the call. The IP-to-IP gateway ensure that this media hair-pinning does not occur over the WAN.
The IP-to-IP gateway can also act as the PSTN gateway for the remote Cisco CME systems as well as for Cisco Unified CallManager. A separate PSTN gateway is not required in such cases.
The IP-to-IP gateway must run a Cisco IOS release that is compliant with Cisco CME 3.4 and that supports H.450, such as Cisco IOS Release 12.4(6)T or later with the IP VOICE feature set.
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...