Siemens Speedstream 4100B DSL Modem

hi!
is the modem still new? if you have purchased it along with your dsl service from your ISP, then they should be the one to give you the warranty. however, if you bought it from best buy, walmart, etc. then you may not receive any warranty from your ISP, but you can let them replace it (especially if it's still a few months from the date of purchase) as for the phone no. well, these centers (for sales, billing, customer service, maintenance, etc.) work only during normal business hours, the ISP tech support is the one working 24/7.
here's their site:
www.siemens.com/it-solutions-contact

and may I ask, why did the tech said it's defective? no power light? if the power light is on & the rest are solid lights or blinking (regardless if it's red or green...), the modem is still ok, it just doesn't have sync, but if power light is off, after plugging it from another power outlet on the wall, then that's the time when we can say it's defective.

here's the support no. 1-800-241-4453 or write them @
https://www2.sea.siemens.com/Contact+Us.htm
or at:
helpline.sea@siemens.com