Designers seeking to develop femtocell technologies can use the G35 protocol analyzer to provide simulation and emulation of key elements of their femtocell designs including UMTS core network interfaces over IP such as Iu-CS and Iu-PS, allowing a significant reduction of both cost and footprint of their labs’ infrastructure as network elements can be replaced by the test unit. The analyzer’s modular, high performance hardware and software platform allows for functional and load testing of all technologies in mobile communication such as GSM, GPRS, EDGE, CDMA, CDMA2000, UMTS, TD-SCDMA, WiMAX and LTE.