[Serusers] Handling of REFER messages

Hi, I am trying to do a peculiar task and I want to find out if SER can do it. The issue is with call transfers which generate the REFER message. I am connecting a Nortel voip switch to Asterisk via sip. I need to have all call transfers generated by the Nortel switch to not reach Asterisk as all the call transfers are done to dids/extensions not found on the Asterisk PBX. Instead I would like to intercept / re-route them back to my Nortel switch which can handle it. Currently I have a workaround using an Audiocodes gateway with loopback cables. The Audiocodes when sees the transfer request sends it back to the Nortel switch. As this is a wasteful use of expensive hardware I would like to find another method to do this. Can someone let me know if this is possible with SER? And if it is which functions do I use? Any help is greatly appreciated. Mirek The Future of Voice Globalive Communications Corp. T: 416-640-1088 F: 416-640-1089 60 Adelaide St. E, 6th Floor Toronto, ON, M5C 3E4 www.globalive.com