Maybe. Bluetooth phones have "profiles" that allow them to communicate with devices that use that profile. Check the owners manual for your speakers. To pair your phone with your speakers, the speakers must use one of the Bluetooth profiles that are also on the Samsung Montage.
According to the Samsung site, the Samsung Montage has the following profiles.
Bluetooth®; Bluetooth® Profiles, A2DP, AVRCP, FTP, GOEP, HFP 1.5, HSP, OPP, PBAP, SBC, SDAP, SPP; HTML Browser; WAP Browser; Java™