FOURTEENTH CONGRESS OF THE REPUBLIC j 
OF THE PHILIPPINES 
Second Regular Session 
Introduced by Senator Miriam Defensor Santiago 
EXPLANATORY NOTE 
Prank callers are, in a word, obnoxious. Thousands of people are bothered by oue 
form of prank caller or another every day. Prank calls range from annoying hang-ups to 
false calls to emergency services or bomb threats. Some prank calls may even waste the 
time and resources of emergency services. Although prank calls may easily be traced 
through Caller ID, most telephone companies permit callers to withhold the identifying 
information from calls. 
This bill prohibits local exchange telecommunications companies from offering 
services which allow the blocking of information from caller identification devices 
including per-call blocking and per-line blocking 'in order to identify the caller's 
identification number and minimize the number of prank callers. 


FOURTEENTH CONGRESS OF THE REPUBLIC) 
OF THE PHILIPPINES 
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Second Regular Session 
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Introduced by Senator Miriam Defensor Santiago 
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AN ACT 
PROHIBITING TELECOMMUNICATIONS COMPANY FROM PROVIDING 
SERVICES WHICH PREVENT CALLER IDENTIFICATION INFORMATION FROM 
BEING SHOWN BY A DEVICE CAPABLE OF DISPLAYING CALLER 
IDENTIFICATION INFORMATION. 
Be it enacted by the Senate and the House of Representatives of the Philippines in 
Congress assembled: 
SECTION 1. Short Title. - This Act may he known as the “Caller Information 
Disclosure Act”. 
SECTION. 2. I’rohibilion - No local exchange telecommunications company shall 
o€fer a service which prevents caller identification information from being shown by a 
device capable of displaying caller identification information, including, but not limited 
to, per-call blocking or per-line blocking. 
SECTION 3. Exemptions - A service which prevents caller identification 
information from being shown by a device capable of displaying caller identification 
information may he offered by a local exchange telecommunications company to law 
enforcement agencies, physicians and health care providers for their cell-phones and 
home telephone numbers, and other entities or individuals upon certification by the 
National Telecommunications Commission (NTC) that the service is needed for reasons 
of public health and safety. The NTC shall promulgate, such rules and regulations as 
may be necessary to effectuate the purposes of this act. 
SECTION. 4. Penalties. - Any director, officer or agent of a corporation who shall 
authorize, order or perform any of the acts or practices constituting in whole or in part a 
violation of Section 2, , shall upon conviction, he subject to a fine of not less than Ten 
thousand pesos (PlO,000.00) but not more than Fifty thousand pesos (P50,OOO.OO) or 
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imprisonment of not less than two (2) months but not more than one (1) year, or both 
upon the discretion of the court. 
SECTION 5. Separability CZause. - If any provision or part thereof, is held 
invalid or unconstitutional, the remainder of the law or the provision not otherwise 
afkcted shall remain valid and subsisting. 
SECTION 6. Repealing Clause. - Any law, presidential decree or issuance, 
executive order, letter of instruction, administrative order, rule or regulation contrary to, 
or inconsistent with the provisions of this Act is hereby repealed, modified or amended 
accordingly. 
SECTION7. Effectivity Clause. - This Act shall take effect fifteen (15) days 
after its publication in at least two (2) newspapers of general circulation. 
Approved. 
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