Hi, this is the situation.MGCP: 1 PRI DMS-100 to PSTN1 PRI QSIG to PBX (for internal call 1-7 xxx)When I change the MGCP to H323.PRI over PSTN, works finePRI for the PBX, doesn't works.If I call from Cisco, no problem except the hangup (doesn't work)...