Somewhere in TCPA it states it's like the JDB called themselves so you should be able to use them on both.
However, as noted by Plaintiff, the Federal Communications Commission ("FCC") has ruled that a creditor is responsible for calls made on its behalf. In In re Rules and Regulations Implementing the Telephone Consumer Protection Act of 1991, 23 FCC Rcd. 559 ¶ 10 (Jan. 4, 2008) ("2008 TCPA Order"), the FCC stated that:
Similarly, a creditor on whose behalf an autodialed or prerecorded message call is made to a wireless number bears the responsibility for any violation of the Commission's rules. Calls placed by a third party collector on behalf of that creditor are treated as if the creditor placed the call.