We currently are slowly migrating all of our inbound/outbound T1's for voice to SIP carriers, we have a Cisco 2851 running the CUBE software as the termination point for our SIP carriers. We currently have a T1 that is utilized for Remote Dial-in Access that is terminated on a AS5530. Is it possible to receive these dial-in connections over the SIP connection and have them terminate on the CUBE itself? I realize there my be quality issues regarding the data connections over the SIP circuit, however by controlling the protocols and bandwidth available I am hoping this can be overcome.