I've got approx 30 phones in a branch office with a 2620 configured with SRST. If the CCM at our HQ fails, and the phones register with the default router to run SRST, then since only a max of 24 phones are supported, what is the registration process? ie is it a race between the phones, with only the first 24 registering with the router succeeding?
I know that you set each phone in CCM to have SRST enabled/disabled, but am trying to figure out the correct way. Is the solution to simply choose beforehand, which 24 phones you want to run SRST on, and disable the feature on the other phones? Thereby when SRST is envoked, only 24 enabled phones will attempt, and succeed to register.
I think the appropiate way is to choose before hand. If you don't you are correct it will be a race for the first 24 to register. This will give you no control over which 24 phones it will be. I suggest using the enable/disable option for srst under the phone config.
You may either only enable SRST on those 24 phones needed to fallback or do the following if all the ip phones are enabled for SRST:
1. you may separate 30 phones into 2 vlan groups, one able to fall back, the other one is not allowed to fallback. And then in CallManager-fallback configuration mode on the router, you may use "strict match" option for "ip source-address x.x.x.x" command, so that the other VLAN group will be restricted from falling back to the SRST.
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
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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 ...
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