(a) Pen register.--Upon the request of an applicant under this subchapter, a provider of wire or electronic communication service, landlord, custodian or other person shall forthwith provide all information, facilities and technical assistance necessary to accomplish the installation of the pen register unobtrusively and with a minimum of interference with the services that the person so ordered by the court accords the party with respect to whom the installation and use is to take place, if assistance is directed by a court order as provided in section 5773(b)(2) (relating to issuance of an order for use of certain devices).

(b) Trap and trace device.--Upon the request of an applicant under this subchapter, a provider of a wire or electronic communication service, landlord, custodian or other person shall install the device forthwith on the appropriate line and shall furnish all additional information, facilities and technical assistance, including installation and operation of the device unobtrusively and with a minimum of interference with the services that the person so ordered by the court accords the party with respect to whom the installation and use is to take place, if installation and assistance are directed by a court order as provided in section 5773. Unless otherwise ordered by the court, the results of the trap and trace device shall be furnished to the applicant designated in the court order at reasonable intervals during regular business hours for the duration of the order.

(c) Compensation.--A provider of wire or electronic communication service, landlord, custodian or other person who furnishes facilities or technical assistance pursuant to this section shall be reasonably compensated for reasonable expenses incurred in providing the facilities and assistance.

(d) No cause of action against a provider disclosing information under this subchapter.--No cause of action shall lie in any court against any provider of a wire or electronic communication service, its officers, employees, agents or other specified persons for providing information, facilities or assistance in accordance with the terms of a court order under this subchapter.

(e) Defense.--A good faith reliance on a court order or a statutory authorization is a complete defense against any civil or criminal action brought under this subchapter or any other law.