Re: SRST, CME, IOS Telephony Service Where is Cisco going with a
SRST only takes care of providing the phones at a remote site with an alternate callmanager in case the wan link to central site is down or for some reason the phones are not able to communicate to the CCM at the remote site. SRST should be used only in a call manager environment. In case of SRST, the phones preserver their extension numbers, which were configured on the CCM database.
To make the phones use SRST, you have to either create a SRST reference and specify that in the device pool, or leave it to use the default gateway. Once the phones are reset, in the Network Configuraiton menu of IP phone, you can see a reference to the Cisco SRST router ip address, as the backup callmanager.
ITS was developed for small scale deployments of IP telephony, where the IP phones number upto 96 phones. ITS involves a lot of configuration, including directory numbers for each phone (which is not required in SRST).
CME (Callmanager express) is a successor to ITS. CME was formerly known as ITS. There is no diff between them, other than a few additional features present in CME.
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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 ...