The Cisco BE6000S runs on router 2921.
I've a customer interested in changing PABX at the beginning of 2018 and I would like to propose BE6000S because it has all required features.
Cisco announces the end-of-sale of 2921 at December 9, 2017:
http://www.cisco.com/c/en/us/products/collateral/routers/2900-series-integrated-services-routers-isr/eos-eol-notice-c51-737831.html
I don't find right replacement bundle platform.
Thanks
Paolo