I think the main issue with interoping between cisco and Vocaltek is h235 security, and the hashing algorithm is different on both sides, hence the incompatibility issue. I will bet the LRJ you are getting has a reason: security denial.
You may be successful registering a cisco Gateway to a Vocaltek Gatekeeper, but not the other way around.
As far as peering at Gatekeeper level, my company has done some serious development in that arena and we have a viable solution. check us out at www.nextone.com, or send me a mail (email@example.com) and i will forward you some more up to date info. i hope this helps.
You have reached the Cisco Logistics Support Center.. To Check Status of
your RMA, visit Product Returns & Replacements (RMA). Need help? Contact
us by Phone or Email. North Americas Phone: 1800 553 2447 Option 4
Email: firstname.lastname@example.org Europe Phone: +3...
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 ...