Owned and operated by Bell Media, it broadcasts on 102.9 MHz with an effective radiated power of 33,600 watts (class B) using an omnidirectional antenna.
Originally known as CFLP when it opened in 1978 as an AM station on 1000 kHz (and identified itself as "Radio Mille"), the station moved to the FM band in late 2000, due to serious problems in nighttime coverage resulting from a very directional signal necessary to protect WMVP in Chicago, Illinois.
The station switched its call sign when it moved to FM and changed its format from talk to adult contemporary (and abandoned its Radiomédia affiliation).
[1] On August 18, 2011, at 4:00 p.m. EDT, all "RockDétente" stations, including CJOI, rebranded as Rouge FM.
The last song under "RockDétente" was "Pour que tu m'aimes encore" by Celine Dion, followed by a tribute of the branding.