issue when linking RQM and RTC

Hi All

I'm trying to integrate the link between a RQM and RTC in different locations.
I successfully create the friendship in my RTC server and I can find the RQM server in my RTC's friend list. https://:9443/jazz/friends.

When I'm trying to add the link.
It promot a dialog to input the a) link type b) Target(RMQ Server)

When I select my RQM freind server, and select link type as
1. Implemented by
2. Implements
3. Tested by
4. Tests by

It will return a HTTP 500 error, and said "link type is not supported by server".

If I select "Validated by" or "Validates", it will list my project areas in RQM server, and I can create this link in RTC.

What's the right link type should I select?
is "link type is not supported by server" expected error?

Is it right to add the link as this link type?
What shall I do next the leverage the RQM project in RTC?

Thanks in advance for your time and effort.