asterisk users - Oct 2004 - SER + Asterisk Attended Call Transfer

Hi All ! 

First I was having trouble using attended call transfer using asterisk but 
thatnks to you guys I was able to make it work by adding 't' in options 
and applying the patch. Now I am using SER along with asterisk. SER works 
as SIP proxy and Asterisk performs all the necessary PBX functionalities. 
Can anybody guide me how to make attended call transfers work in this 
scenario if the SIP phone doesnot support attended call transfers. I'll be 
waiting for any valueable feedback.
Thanks,
Usman.