Siemens Gigaset N300A: Hybrid DECT Base Station for Landline & VoIP. The Gigaset N300A is a feature­rich base station designed for handling both landline and VoIP phone calls. It is equipped with a digital answering machine and support for holding up to three calls in parallel and connection to six different lines. Offering exceptional audio quality, the system provides full support for wideband audio in Internet telephony applications.. Internet Telephony Made Easy. Businesses and home users alike are rapidly starting to take advantage of the cheaper, higher quality phone calls afforded by VoIP applications, and the Gigaset N300A provides excellent support for such systems as well as the traditional landline. Users can also handle multiple phone calls at the same time, add new user accounts and register a total of six handsets to the base station. Compatible handsets also allow you to check your email and take advantage of a range of other useful online features. Additionally, Gigaset