Compability of Xbee and Xbee pro modules


Are my two different models of XBee is compatible with each other?
Can I use Xbee Pro S2 module with Xbee pro Digimesh.
As they are working on same frequency am I able to send or receive data to each other??

Although they are working on same 2.4 GHz frequency, they are entirely different. Both works on different communication protocol and have different hardware, making them incompatible with each other.