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Telcos charge for connecting phone calls and routing voice packets. Even robocallers have to pay those fees.

• flyinghamster 8y ago
  Not only that, but they also charge for Caller ID name lookups.
  • nonbel 8y ago
    This is interesting. So if I get a strange number and search 800notes.com or whatever the carrier is getting paid?
    • flyinghamster 8y ago
      No, this occurs at the telco level. When a call is placed, only the number is sent. The receiving exchange must look up that number to get the name, and that lookup costs some fraction of a cent. This is why Caller ID with name costs extra money.
• nonbel 8y ago
  So if I don't answer, who is paying for the call? I thought unanswered calls were free for some reason.