CONNECTEDLINE and Aastra phones

I have Asterisk 1.8.4.4 installed and I am trying to get the CONNECTEDLINE function working. This is a fairly significant feature missing from previous Asterisk versions and I really need to get it working to move forward with a production system.

I have a Polycom on trial and it works ok however I just cannot get the the display to work on the Aastras.

I have the following in my sip.conf:
trustrpid=yes
sendrpid=pai

and this is the testing section of my extensions.conf extension macro:
exten => s,n,Set(CONNECTEDLINE(name,i)=Yay)
exten => s,n,Set(CONNECTEDLINE(name-pres,i)=allowed)
exten => s,n,Set(CONNECTEDLINE(num,i)=5551212)
exten => s,n,Set(CONNECTEDLINE(num-pres)=allowed)
exten => s,n,Dial(${channel},90,I)

I have the following in my aastra.cfg:
sip update callerid: 1
sip pai: 1

Does anyone have any working configurations. Please please. :cry:

Thanks
Mike

Did you ever get the connectedline info to display on the Aastra sets?

Can you explain a bit more about the feature or what you want to acchieve?