Channel diversification is definitely a smart move, but that ringless voicemail for finance offers sits in a pretty grey area under TCPA - especially on older lists where the original consent might not clearly cover that method.
The callback rates are interesting, but I'd make absolutely sure the compliance side is airtight before scaling anything in finance. that vertical gets scrutinised hard. i've seen campaigns perform beautifully short term, then create serious headaches later because the consent or documentation wasn't rock solid.
better to move slower and keep the infrastructure clean, especially when using tools like Runable to scale landing pages and outreach assets quickly. 😊