Spotlight: Model 3540 Telephone Network Emulator and Voiceband Analyzer The Model 3540 is an advanced test instrument that combines CO simulation (FXS), Caller ID testing, SMS testing, TE simulation (FXO), analog network emulation, and key measurements for testing telephones, modems, gateways, and VoIP products -- all in a single platform. Click here for more information on the Model 3540.   Click image to view software The 3540 has broad application in R&D, quality assurance, manufacturing, test, and service of international telephony products.  Now Available: PESQ & Handset Emulation options. Company Overview: Rochelle Communications We are a privately-held company founded in 1989 and a leading supplier of innovative test equipment for international Telephony, Modem, Caller ID, Fixed-line SMS, & VoIP applications. Our products allow testing to ETSI, Bellcore, Telcordia, and other national telephony standards. Our products combine features of a Telephone Tester, SMS Tester, Caller ID Tester, Modem Tester, FSK Tester, Central Office Simulator, Telephone Line Simulator, Signal Generator, and PESQ / Voice Quality Tester. We offer a wide range of instruments for R&D, design verification, and production test with application for Voice Quality Testing, Central Office Simulation, Telephone Line Simulation, Network Simulation, SMS Testing, FSK Testing, Telephone Testing, Modem Testing, Caller ID Testing, DTMF Analysis, Handset Emulation. Our Customers include major Telephony & VoIP equipment providers and factories worldwide, including North & South America, Europe, China, and other counties in Asia. We also offer Caller ID products for Computer Telephony Integration (CTI).  Please visit http://www.rochellecti.com for more information. Please contact us in the USA at 512 339-8188 or info@rochelle.com, or contact one of our Worldwide Distributors outside the USA.