Randolph Telecom Provides Engineering Consulting Services For The Design Of Telecommunications Products
Circuit Design and Prototyping of Telecom Products


■ Broadband data communications equipment over copper, fiber, coax, and wireless
■ POTS (Plain Old Telephone Service)
■ VOIP (Voice Over Internet Protocol)
International Regulatory Compliance for Homologation


■ Safety standards IEC 62368, EN 62368, UL 62368
■ EMC standards FCC Part 15, EN 55022, and EN 55024
■ Resistibility standards ITU K.21, K.22, K.44, and K.45
■ Industry standards TIA-464, TIA-470, TIA-968 and TIA-810-B
Telcordia NEBS GR-1089-CORE (USA) and EN 300 386 (EUROPE)


■ Lightning immunity
■ Power cross and AC power fault
■ Conducted RF immunity
■ ESD immunity
Lightning Protection


■ Compliance with regulatory standards for lightning immunity
■ Coordination of primary and secondary lightning protection
■ Troubleshooting field failures
■ Optimizing the cost of protection circuitry
Handset Telephony


■ Telephone speech transmission per TIA 470, ETSI TBR 38
■ Loudness ratings (TOLR, SLR, etc.)
■ Sidetone
■ Noise and hum
■ Echo
Engineering Design Reviews and Troubleshooting


■ Reviews for compliance with design goals
■ Pre-testing for regulatory compliance
■ Troubleshooting specific problems
■ Cost reduction
Expert Witness and Patent Assistance


■ Analyze patent claims for infringement or non-infringement
■ Research prior art
■ Product testing
■ Explain complex technology in non-technical terms
■ Assist with drafting patent applications