Fortinet FortiFone-550i Business VOIP SIP Phone 10/100 Lan 10/100 PC PoE with Power Adapter 22 up to 46 lines with 2*FON-50e Exp FON-550i
FortiFone-550i Business VOIP SIP Phone, 10/100 Lan, 10/100 PC, PoE, with Power Adapter , 22 up to 46 lines with 2xTS-50e expansion modules