Given the task definition and input, reply with output. In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.

Truth in Caller ID Act of 2007 - Amends the Communications Act of 1934 to make it unlawful for any person in the United States, in connection with any telecommunication service or VOIP (voice over Internet protocol) service, to cause any caller identification service to transmit misleading or inaccurate caller identification information ("spoofing") with the intent to defraud or cause harm. Prohibits construing these provisions to prevent blocking caller identification or to authorize or prohibit law enforcement or U.S. intelligence agency activities.
To amend the Communications Act of 1934 to prohibit manipulation of caller identification information, and for other purposes.