Avaya Single Step Conference with asterisk via PRI

[kilima]

Hi there
I have been trying to integrate avaya definity to asterisk pbx via DS1 E1 channel for recording in vain. I have gone though previous post which looks similar to my problem but i failed to establish the connection. Here is my scenario
Setup: (MSC1)------PRI----(ASTERISK)-----PRI-----(DEFINITY)-----PRI----(MSC2)
- all calls coming from/to asterisk should be monitored: pass
- all calls from/to and within Avaya should be monitored by connected asterisk server (this should include extension to extension) - challenging
- The system consist of avaya definity and asterisk server only.

Can someone assist to advice on how to go about this

Thanks
Sam