Meeteasy GSM conference phone can access a cellular GSM network (GSM900MHz/1800MHz) when you insert a GSM-enabled SIM card into it. You then use your cellular network to make conference calls as you would on a cell phone, with the addition of Meeteasy’s advanced GSM conference phone technology.
Note that a SIM card is required for most cell phones to access the GSM cellular network; conferencing abilities may be limited by the carrier.
3/F,Building#10, Jiu Xiang Ling Industrial Zone,Xili
Nanshan District, Shenzhen, 518055, China