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Our CT14 telephone system was designed to be used with analog telephone lines and we do not recommend using it with digital or VOIP telephone services as they are not compatible on most cases. Please don't hesitate to contact our customer care group at www.plantronics.com/support if you have other questions!
Sorry, there was a problem. Please try again later.You can but the volume level on your end will be very low. The magicJack has a historically low volume/low power.
Sorry, there was a problem. Please try again later.
