Just built the K6501 Phone remote control. It will pick up after the 8th ring, flashes the red LED and no tones are heard for status of relays AND cannot make the relays go on or off. I can operate the card when switching to 3 rings. It will answer, the red LED flashes and the tones come on to tell what state the relays are in. I can also change the relays to on or off. This would be OK to keep this way, but if the power ever goes off for a short while, the default is 8 rings and the board will not work. Out side of a UPS for this, in order to keep it at 3 rings, how do I make it work on 8 rings. My feeling is the PIC program chip may be defective. I have checked and re-checked all the components for proper location and no bent pins on the chips. Any ideas?
Make sure there is no fax, fax select, voicemail, etc… interfering with the signal. The pic is not defective. It uses the exact same routines for either 8 or 3 rings. Give it a try on an other line or location.
I attached this to the in comming line direct from outside. Disabled and un-plugged the answering device, have no fax, kept one mechanical pnone next to it to hear the rings. Using DC power to the card. The two wires from the phone line are not uni-directional. They card will not work at all if the wires are not attached in the correct direction. I will try this card in another location.