We have 2821's each with 2 PRIs. They run SIP and IOS 124-9.T6. Consultative call transfer where each call leg traverses a different gateway do not work. The transferring phone is a 7960 running SIP 7.3(8.8 didn't work either). Cisco cannot provide a conclusive answer but suggests this will not work. Any thoughts? Can it be made to work using SIP & H.323? We are not using call manager.