Okla. Stat. tit. 15, § 15-775C.4: Unlawful phone calls

A. A commercial telephone seller or salesperson may not make

any of the following types of phone calls, including calls made

through automated dialing or recorded messages:

1. A commercial telephone solicitation phone call before 8 a.m.

or after 8 p.m. local time in the called person's time zone; and

2. More than three commercial telephone solicitation phone

calls from any number to a person over a twenty-four-hour period on

the same subject matter or issue, regardless of the phone number

used to make the call.

B. A commercial telephone seller or salesperson making a

commercial telephone solicitation call may not:

1. Intentionally act to prevent transmission of the telephone

solicitor's name or telephone number to the party called when the

equipment or service used by the telephone solicitor is capable of

creating and transmitting the telephone solicitor's name or

telephone number; or

2. Use technology that deliberately displays a different caller

identification number than the number from where the call is

originating to conceal the true identity of the caller.