I have 2 sites one with a BCM 450 r5 (MCDN installed) with H323 trunks and a MICS 7.0 (no MCDN which i woudlnt think would be necessary)connected to a Nortel VoIP gateway. The systems are connected via TWT MPLS. I can make "Intercom" calls across the VoIP trunks both ways just fine. When i make a call from the MICS digital set throught the VoIP gateway to a IP set on the 450 the call is fine however when an IP set on the 450 transferes the call the signalling is there and the call is connected but there is no voice either way. I have checked gateway settings, made sure codec's are the same on both the BCM and VoIP gateway. Any one have an idea or no of any limitations causing this with the Nortel VoIP gateway? Thanks