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For what it's worth, and for all those asking questions about Canadian numbers, caller id name is handled differently in Canada than in the states. When a carri
by joshaidan 15y ago
For what it's worth, and for all those asking questions about Canadian numbers, caller id name is handled differently in Canada than in the states. When a carrier sends an outgoing call, they include the caller id name in the SS7 IAM (Initial Message), unlike the states where the receiving carrier has to do a database lookup on the number to retrieve the name. This likely explains why a lot of Canadian numbers are not returning any results, or incorrect results.
Personally, I think the Canadian system of including the name in the IAM works a lot better than having to do a DB lookup.
- guan 15y agoI believe this is also the case for public switched telephone network in the US. On a landline, the name and number of the calling party is transferred by Bell 202 and a lot of phones will display this information.
- gruntle888 15y agoThis discussion is about how the name is delivered to the telephone company being called, not from that company to your phone. In the US, the calling telephone company sends the number, the called company looks it up in a database, then sends the name they get to your phone. Everything but the delivery to the phone takes place over the SS7 network.