Cisco IP Phone 7970

[m4xm0rris]

Hello there everybody,
New here so please excuse improper posting area or anything else I may have done

With the help of this post I have been able to get almost everything on my Cisco 7970 working except for 2 things:
Conference Calls
Call transfers work and are completed successfully, however, the original call still appears as connected on the 7970 after the transfer has completed (no audio or anything).

Any help with these issues would be greatly appreciated!
Thanks!

 

[m4xm0rris]

UPDATE
By making changes from this post I was able to resolve the call transfers issue, however, when attempting to join two calls into a conference, I still receive the "Cannot complete conference" message.

Any ideas greatly appreciated

 

[m4xm0rris]

UPDATE
For anyone who may be as much of a numpty as myself, the conferencing issue was simply fixed by changing the proxy in the line configuration to the IP address of 3CX, rather than "USECALLMANAGER" which was already in place in the template config file I used.