3Com 3C882 manual Installing Analog Equipment

Installing Analog Equipment 2-7

CAUTION: The 3C882 ISDN modem is designed to operate with telephones that are compatible with the original AT&T® 2500 touch-tone telephone standard. 3Com guarantees proper operation of up to three compatible touch-tone devices per analog phone port.The 3C882 ISDN modem is designed to provide power and ringing for these three devices on up to 200 feet of AWG 26 or heavier AWG wiring. Although the 3C882 ISDN modem may function satisfactorily at longer cable distances with more than two attached telephones, proper operation at longer cable distances is not guaranteed in all situations.

Specialized telephone equipment such as speaker phones that draw large amounts of power may not work on the 3C882 ISDN modem’s Phone port. Because these devices do not conform to the power specification of the 2500 touch-tone telephone standard, their operation is not guaranteed.