Thanks for all the replies. I knew a lot of those answers already, but the recent surge in complaints drove me to post this topic. Anyone have an idea on how long the ITSP goliaths like Comcast or Vonage typically cache a record? "Alex Balashov" <abalashov at evaristesys.com> wrote:
On 10/06/2010 06:17 PM, Paul Timmins wrote:
On 10/06/2010 05:33 PM, Alex Balashov wrote:
Yeah, not everybody uses the same CNAM lookup providers, and there's a lot of caching going on.
Characteristically, the most accurate and up-to-date database is the one the ILEC uses; many of these VoIP ITSPs and CLECs use other third parties, and either they or the third party do a fair bit of caching and questionable update processes to save money on CNAM dips.
The whole thing's pretty stupid; it should just be canceled.
99% of it comes back to:
http://www.targusinfo.com/solutions/identification/caller_name/
Really? Didn't know their share was quite that high. Interesting.
And yeah, lots of folks query them and then cache. They're not supposed to, of course, as per the contract, but alas.
Verisign always used its STPs and GTT to route you to the direct CNAM databases and get you the right data from the proper industry databases.
Indeed, but they are more expensive, compelling much of the competitive carrier sector to switch to Targus.
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