The G430 Media Gateway consists of a 1.5U high, 19" rack mountable chassis with DSP resources and memory. It has three Media Module slots that host a combination of interface boards to support T1/E1, ISDN-BRI, digital or analog telephones and analog trunks. The first Media Module slot can also host an S8300 Server to provide integrated IP Telephony for standalone businesses or mission-critical survivability for branch office-deployed G430s.