What about VoFR with PVC’s dedicated for voice and also PVC’s dedicated for IP traffic seperately? You could use, say, a Cisco router with T-1 voice interface to slam the VoFR traffic and then IP encapsulate in frames to go down same frame line but different logical dlci for pure non-voice data traffic. Wouldn’t this be same as what Leo was asking for… same transport and simultaneous support?
Dwayne