2N® BRI Lite is a GSM/UMTS gateway, which can help you bring down the costs of your company’s communications solution needs. It attaches easily to any PBX with a digital ISDN BRI interface. At the same time, you have the option whether to connect the gateway to port TE or NT. Its features naturally include the counting of free minutes, a CallBack service, or the ability to send and receive SMS messages from your PC.