I don't think this is going to be an issue, the N95 supports.
? WCDMA 2100 (HSDPA) with simultaneous voice and packet data (PS max speed UL/DL= 384/3.6MB, CS max speed 64kbps)
? Dual Transfer Mode (DTM) support for simultaneous voice and packet data connection in GSM/EDGE networks. Simple class A, multi slot class 11, max speed DL/UL: 177.6/118.4 kbits/s