Most (maybe all) phones come with crossover cords, but unless your 2500 set is ancient, the cord won't matter.
Since the mid 1980s, when phones became retail products, they've been equipped with "polarity guard" circuits so they would work even with reversed polarity. Before that time, phone companies often deliberately reversed polarity for customers who were not paying for touch-tone service, but were connected to central offices that automatically provided touch-tone. That way, if someone had a stolen touch-tone phone, and installed it according to the normal color code, it would not dial out. Some kids, however, were smart enough to reverse polarity and enjoy freebie touchtone. Later on, most phone companies stopped charging extra for touchtone. /mnm ----- Original Message ----- From: "Tom Stewart" <[EMAIL PROTECTED]> To: "Michael N. Marcus" <[EMAIL PROTECTED]> Sent: Monday, August 18, 2003 11:50 AM Subject: Re: station cords for digital sets > Quoting "Michael N. Marcus" <[EMAIL PROTECTED]>: > > > Phones generally use crossover wiring; but Panasonic phones are not polarity > > sensitive, so you can use either type. > > Thanks. Almost exactly what I need to know. One subtlety, however, is if I > have a polarity sensitive 2500 set connected to the XDP (via a standard > crossover cable), the cable will matter. What would have come in the box if I > had bought a new one -- crossover or straight-thru? (I assume the one in the > box would work in the above situation... ;-) ) > > > > > Michael N. Marcus > > AbleComm, Inc. > > www.ablecomm.com etc > > > > > > > > ----- Original Message ----- > > From: "Tom Stewart" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Monday, August 18, 2003 10:42 AM > > Subject: KX-T: station cords for digital sets > > > > > > > Are these wired straight-thru or "crossover" like traditional voice set > > cables? > > > For example, a KX-T7431 connected to a KX-TD308. > > > > > > > > > > > > _________________________________________________________________ > > > KX-T Mailing list --- http://kxthelp.com/ > > > Subscription changes: http://kxthelp.com/mailman/listinfo/kxt > > > > > > > > > > > > > > > > _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
