Latest / Connectivity Without Chaos - The Podcast / **Why Nobody Answers the Phone Anymore: The Hidden Business Cost of “Spam Likely”**
Transcript
- 0:00SPEAKER_01: Think about the last time your phone buzzed with an unknown number.
- 0:03SPEAKER_01: You probably stared at the screen,
- 0:05SPEAKER_01: saw that,
- 0:05SPEAKER_01: you know,
- 0:06SPEAKER_01: spam likely warning,
- 0:07SPEAKER_01: hit ignore,
- 0:08SPEAKER_01: and then found out hours later it was actually your doctor trying to reach you
- 0:11SPEAKER_01: about test results.
- 0:12SPEAKER_00: Yeah.
- 0:12SPEAKER_00: I mean, it's become this completely ingrained reflex for all of us.
- 0:16SPEAKER_00: We've actually reached a point where something like 85%
- 0:19SPEAKER_00: of people just flat out refuse to answer their ringing phones.
- 0:21SPEAKER_01: Right.
- 0:22SPEAKER_01: Which is wild.
- 0:23SPEAKER_00: Yeah.
- 0:23SPEAKER_01: So today's deep dive pulls from some recent telecom industry interviews looking
- 0:28SPEAKER_01: at tech insights from places like Provision Networks
- 0:31SPEAKER_01: to figure out why carrier networks are suddenly treating legitimate hospitals like
- 0:36SPEAKER_01: hackers.
- 0:36SPEAKER_00: Exactly.
- 0:37SPEAKER_00: And how cryptographic tech is trying to fix it.
- 0:40SPEAKER_00: But to understand the fix, you really have to look at how we broke caller ID in the first place.
- 0:45SPEAKER_01: Yeah.
- 0:45SPEAKER_01: Let's start there.
- 0:47SPEAKER_01: How did we get to a point where we can't even trust our own screens?
- 0:50SPEAKER_00: Well, the fracture really happened when the world moved away from TDM.
- 0:53SPEAKER_00: That's time division multiplexing.
- 0:55SPEAKER_01: The old copper wires, right?
- 0:56SPEAKER_00: Right.
- 0:57SPEAKER_00: Exactly.
- 0:58SPEAKER_00: Those are these rigid physical networks where every single call had a dedicated traceable path.
- 1:03SPEAKER_00: But over the last couple of decades, we replaced that with SIP, Session Initiation Protocol.
- 1:08SPEAKER_01: Which is internet-based.
- 1:10SPEAKER_00: Yeah.
- 1:10SPEAKER_00: It's packet-switched.
- 1:11SPEAKER_00: And I mean,
- 1:12SPEAKER_00: SIP is way cheaper and highly programmable,
- 1:14SPEAKER_00: but it fundamentally separates the call's signaling path from
- 1:18SPEAKER_00: the actual voice media path.
- 1:20SPEAKER_01: And that separation is the issue?
- 1:22SPEAKER_00: That design choice is exactly what allows spoofing.
- 1:25SPEAKER_00: Bad actors can just, you know, inject a fake number into the SIF header.
- 1:28SPEAKER_01: So it's like writing a fake return address on an envelope.
- 1:32SPEAKER_00: Yeah.
- 1:32SPEAKER_00: And then they just fire it off before the carrier can even verify its actual origin.
- 1:36SPEAKER_00: It's like replacing a solid oak front door with a bead curtain.
- 1:40SPEAKER_01: Oh, I like that analogy.
- 1:41SPEAKER_00: Yeah.
- 1:41SPEAKER_01: Great for airflow, but terrible for security.
- 1:43SPEAKER_00: Exactly.
- 1:44SPEAKER_00: So carriers were suddenly facing these decentralized global bad actors firing
- 1:49SPEAKER_00: millions of these spoofed packets.
- 1:51SPEAKER_00: It turned network defense into this impossible game of global whack-a-mole.
- 1:55SPEAKER_01: So because the carriers can't easily trace those packets back to the source,
- 1:59SPEAKER_01: they end up using like these blunt heuristic analytics at the destination.
- 2:04SPEAKER_00: Yeah, things like call velocity and volume.
- 2:07SPEAKER_00: And that's why legitimate businesses get caught in the crossfire.
- 2:10SPEAKER_00: The filters are basically just guessing.
- 2:12SPEAKER_01: So if the hospital sends out a batch of automated appointment reminders,
- 2:15SPEAKER_01: they hit a volume threshold.
- 2:17SPEAKER_00: Right.
- 2:17SPEAKER_00: And then the carrier's analytics just slap a spam likely label on it.
- 2:21SPEAKER_00: The business costs for that are immediate and honestly pretty severe.
- 2:26SPEAKER_01: I can imagine.
- 2:27SPEAKER_00: No one answers.
- 2:27SPEAKER_01: No one answers.
- 2:28SPEAKER_00: Answer rates plummet.
- 2:29SPEAKER_00: Staff waste hours calling people back and brand equity,
- 2:33SPEAKER_00: which is literally consumer trust, just evaporates.
- 2:37SPEAKER_01: Which creates this massive two-way trust deficit, doesn't it?
- 2:40SPEAKER_01: Like outbound, the business can't mathematically prove they aren't a spammer.
- 2:44SPEAKER_00: And inbound,
- 2:46SPEAKER_00: when you finally call them back,
- 2:48SPEAKER_00: the business has to use all this device metadata and voice biometrics just
- 2:52SPEAKER_00: to prove you aren't an AI deepfake.
- 2:54SPEAKER_01: Right.
- 2:54SPEAKER_01: It's exhausting.
- 2:55SPEAKER_01: So how is the telecom industry trying to fix the outbound side?
- 2:58SPEAKER_00: Well, they introduced the stir-shake-in protocol.
- 3:02SPEAKER_00: Instead of just hoping the SIP header is accurate,
- 3:04SPEAKER_00: it uses public key cryptography to sign the call metadata at the origin.
- 3:09SPEAKER_01: Like sealing the caller ID in a tamper-proof digital envelope.
- 3:12SPEAKER_00: Exactly.
- 3:13SPEAKER_00: It passes an A-grade trust score through the network.
- 3:17SPEAKER_01: Wait, but if that uses cryptographic signatures,
- 3:20SPEAKER_01: why is my phone still blowing up with spam likely messages?
- 3:23SPEAKER_01: The math works, so...
- 3:25SPEAKER_00: Because the interoperability is a total mess.
- 3:28SPEAKER_00: These systems aren't uniform globally,
- 3:30SPEAKER_00: and sometimes they don't even work across competing carriers in the same country.
- 3:34SPEAKER_01: Oh, so the signature gets lost in transit.
- 3:35SPEAKER_00: Yeah.
- 3:36SPEAKER_00: A clean signed number might get stripped of its signature as it passes through
- 3:40SPEAKER_00: a legacy router, so it arrives at your phone looking completely unverified.
- 3:44SPEAKER_00: Businesses have to continuously monitor their numbers just to keep them clean.
- 3:48SPEAKER_01: That sounds incredibly frustrating for premium brands.
- 3:51SPEAKER_01: They must be looking for ways to bypass the carrier networks entirely
- 3:54SPEAKER_01: to guarantee calls get answered.
- 3:56SPEAKER_00: They are.
- 3:57SPEAKER_00: They're using these out-of-band pre-call APIs for branded calling.
- 4:01SPEAKER_00: A trusted provider securely passes a vetted brand logo directly
- 4:04SPEAKER_00: to your mobile screen over the internet.
- 4:06SPEAKER_01: Oh, so it just completely sidesteps the carrier's in-network signaling,
- 4:11SPEAKER_01: like skipping the bouncer at the door because the club owner texted your photo to
- 4:14SPEAKER_01: the bartender inside.
- 4:16SPEAKER_00: That's exactly it.
- 4:17SPEAKER_00: You bypass the flawed filtering entirely.
- 4:19SPEAKER_00: But it means businesses are deploying massive amounts of cryptography and APIs just
- 4:24SPEAKER_00: to get a human to say hello.
- 4:26SPEAKER_01: Your attention and trust really have become the most expensive currency
- 4:29SPEAKER_01: in telecommunications right now.
- 4:31SPEAKER_00: Without a doubt.
- 4:32SPEAKER_01: It makes you wonder, soon we might not answer the phone at all.
- 4:36SPEAKER_01: As AI gets more advanced,
- 4:37SPEAKER_01: what happens to trust when your personal AI agent screens your calls
- 4:41SPEAKER_01: and just negotiates with the business's AI agent?
- 4:44SPEAKER_00: We might just leave human voices out of the equation entirely.
- 4:47SPEAKER_01: Seriously.
- 4:48SPEAKER_01: Next time you stare at that spam-likely notification,
- 4:51SPEAKER_01: just remember,
- 4:53SPEAKER_01: The beat curtain is still blowing in the wind,
- 4:54SPEAKER_01: but the cryptographic bouncers are finally starting to check IDs.