There is information on this in the IPPS SDK around page 18 that may be of use to you.
Specifically, use Key:KeyPad0 and change the digit 0 (at the end) to whichever digit you are looking to use. You can also use other keys such as Key:KeyPadStar, Key:KeyPadPound, Key:Speaker etc. Check out the SDK for more information...
I am not aware of any method of chaining multiple Key URIs in a single softkey item. There may be a way, but I'm not sure.
One thing you may want to play with is to have the softkey redirect to another page that contains the CiscoIPPhoneExecute tag. Since you can chain multiple (3) ExecuteItem directives, this may allow you to achieve a similar result.
If you need to return to the calling page, or another page, as in the example below, using the 3rd executeitem to call another page may work.
e.g. (code snippet):
I hope that helps, or perhaps there is indeed a way to chain Key URIs.
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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 ...