Communicating as Modem XTend® 900MHz RF Modems and XBee-PRO® 900HP RF Modems in the SAME Network

Communicating as Modem XTend® 900MHz RF Modems and XBee-PRO® 900HP RF Modems in the SAME Network?

They communicate in the same mesh topology?

No, they are different products and do not have the ability to communicate.