Voltage changes a lot while the phone is both ringing and in use. Be very careful with this, if you pull too much power, your line will sound bad / not work at all, and if you don't have the right equipment , you could do damage to your phones or whatever you are powering.
Specifically, phone lines used to be completely responsible for providing the power to make all the phones in the house ring at once. Now, many phones usually draw power from the wall as well (eg: for the lcd). Some phone companies will still be putting tons of current through the line at that point, so watch out!
If you don't want it to flash when it rings, try putting a capacitor somewhere in the circuit. And, do a dsl speedtest before and after trying this to see if it makes a significant difference.
Reader Comments (Page 1 of 1)
atrain @ Oct 14th 2007 7:46PM
Voltage changes a lot while the phone is both ringing and in use. Be very careful with this, if you pull too much power, your line will sound bad / not work at all, and if you don't have the right equipment , you could do damage to your phones or whatever you are powering.
Specifically, phone lines used to be completely responsible for providing the power to make all the phones in the house ring at once. Now, many phones usually draw power from the wall as well (eg: for the lcd). Some phone companies will still be putting tons of current through the line at that point, so watch out!
If you don't want it to flash when it rings, try putting a capacitor somewhere in the circuit. And, do a dsl speedtest before and after trying this to see if it makes a significant difference.