Low voltage circuits powered by the phone line

Phone line communication circuitry connectable to a phone line, comprising:

• phone line side circuitry configured to communicate with a phone line and configured to communicate with powered side circuitry through an isolation barrier;
• and
• at least one low voltage circuit within a phone line side integrated circuit and coupled to the phone line, the low voltage circuit being a converter circuit that has at least one low voltage power supply level generated from the phone line,
• wherein the low voltage circuit is supplied with power through a node coupled to the phone line, the node having a voltage level of 2.5 V or less.

A method of powering at least a portion of a phone line communication circuit for use in terminating a phone line, comprising:

• providing a phone line side integrated circuit configured to communicate with a powered side integrated circuit through an isolation barrier;
• coupling a low voltage circuit within the phone line side integrated circuit to at least one external device, the low voltage circuits having a low voltage power supply level;
• coupling the at least one external device to TIP and RING phone lines;
• and
• supplying a voltage from the TIP and RING phone lines to the low voltage circuit, the voltage being at a level of 2.5 V or less at an input to the low voltage circuit.