The gigaset n510 ip base for small businesses aiming for higher productivityall companies need a base station to direct their communication and the sophisticated n510 ip pro is suitable for up to six users with the facility register up to six handsets the n510 allows up to four parallel calls and works behind all standard ip phone networks and services from operators the online contacts list makes it easy to find people and companies when used together with the t300 pro t500 pro telephon