*** If you are adding an MGCP gateway in a route group that uses QSIG, you can only add other MGCP gateways that are also QSIG enabled. Once you add a gateway (with QSIG) in a route-group, all other non-QSIG gateways are not listed.
*** Same applies vice versa (if you add a non-qsig MGCP gateway, all other qsig MGCP gateways are not listed
*** When a QSIG MGCP gateway is added to a route group, the route group configuration page shows the Route-group type as QSIG. (If the gateway is NON-QSIG, it shows the Route-group type as Non-QSIG)
*** H323 / H225 type gateways cannot be added to a Route group which already has a QSIG type MGCP gateway.