I have a machine prot mirroring my 3300. I have a linksys 2102 configured for a single analog sip station. and it is working fine. I get sip and rtp in the wireshark. When I dial out to exchange I get nothing. I am using the Mitel Configuration notes SIP CoE 10-4940-00117 "Configure MCD 4.0 UR3 for use with Microsoft Exchange 2010".