LONDON — Quorum Systems, Inc., TTPCom Ltd and Analog Devices Inc. have collaborated on a GSM/Voice-over-Wi-Fi dual-mode handset reference design.
Dubbed the Sereno UM-1 and housed in a small form-factor clam-shell design, the reference design incorporates Quorum’s QS2000 single-chip bulk-CMOS multi-mode transceiver, ADI’s Blackfin SoftFone EDGE chipset and TTPCom’s protocol stack and