Are there any certified restaurant table booking systems that interface to Simphony (or even RES)?
There is no "repetable integration" for TMS at this point as far as I know. ResDiary has developed an integration but only availiable via CEMLI and pricetag attached.
We are waiting for more partners to come on board regarding TMS - currenty this is a gap and the future integration of the omnivore marketplace might bring some more options.
Have not heard of "quadranet" and Simphony integration. They would probably have to develop an integration.