Steve, Besides EMC, telephony, product safety regulations, and telephony interworking standards, you need to think about laser safety regulations too (compliance for LED based optics also). Those are refered to in EN60950 and US/Canada bi-national standard UL 1950 3rd ed/CSA CAN 22.2 No.950.
John A. Juhasz Product Qualification & Compliance Engr. Fiber Options, Inc. RCIC - http://www.rcic.com Regulatory Compliance Information Center
