Add Advertising to your public telephone.
Changeable paper advertising with LED back lighting
● 120mm×180mm economic LED lighting AD box;
● ¢288mm×488mm economic LED lighting half-circle Box;
● Multifunctional IP phone with call time limit/calling number;
restriction/10 groups of redial number setting, etc...
● Quick replacement of AD Graphic;
● Manual switch or programmable time-controlled switch;