depends on what are you looking to do with the equipment.
If we are talking about calling card gateway and billing, quintum can not compare to sysmaster.
I could not find Callback equvalent in Quintum.
for passthru traffic only , may be.
As far as support, no suggestions.
so far i have not received good support from any of the vendors i have tried. Nortel could not configure their own H323 switch, cisco keeps asking for paid support…and don’t even mention welltech, still sitting in my closet.
it looks like the industry is young and they are all the same.
If you can learn how to operate your equpment, you can avoid frustration with support.