not sure whether what you are saying can apply here, since this is a case of a call from a non-tw pri to their residential tw voip phone. doesn't that necessarily mean that tw is not doing a CNAM dip on the call?<br><br>
maybe genericname gets sent if CNAM turns up unknown/invalid?<br><br><div class="gmail_quote">On Wed, Feb 3, 2010 at 12:34 PM, David Birnbaum <span dir="ltr"><<a href="mailto:davidb@pins.net">davidb@pins.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">That's a mistake/misconfiguration. I believe Canada sends CNAME inband, but in the US, it probably just means somebody is using a client-profile PRI for a carrier circuit, doing toll-bypass, or playing other games. We have seen this type of misconfiguration on smaller VoIP carriers.<br>
<br>
Time Warner may carry CNAM internal on their network so they can save the money on CNAM dips, but obviously that won't go far.<br>
<br>
Cheers,<br>
<br>
David.<br>
<br>
-----<br>
<br></div><div><div></div><div class="h5">
On Wed, 3 Feb 2010, Carlos Alvarez wrote:<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Time Warner does transmit the name info that you send. We have a TWTC PRI and I've seen the same thing when calling another number on their network. It has even happened to numbers on other networks, though now I can't remember which ones. One of their engineers confirmed that they do this on purpose, but also couldn't tell me which other networks accept this from them.<br>
<br>
<br>
On 2/3/10 9:24 AM, milosz wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
hi all,<br>
<br>
has anyone heard of a US residential carrier transmitting the callername<br>
parameter from the IAM instead of doing a normal CNAM lookup? i have<br>
some users--for whom the pbx is (intentionally) set up to transmit an<br>
invalid cpn--who are claiming that when they call their home phones from<br>
the office, their internal (sip) caller name appears on the caller id<br>
along with the invalid cpn, which makes no sense from a CNAM lookup<br>
standpoint. the only thing i could think of (other than they are<br>
nuts/lying) is that their gateway is transmitting the sip callername in<br>
the IAM and the carrier is passing that along instead of doing a lookup.<br>
the btn is the same for all users so that can be ruled out.<br>
<br>
they are all on cablevision or time warner.<br>
<br>
thanks,<br>
<br>
milosz<br>
<br>
<br>
<br>
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Carlos Alvarez<br>
TelEvolve<br>
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