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. On 2/3/10 9:24 AM, milosz wrote:
hi all,
has anyone heard of a US residential carrier transmitting the callername parameter from the IAM instead of doing a normal CNAM lookup? i have some users--for whom the pbx is (intentionally) set up to transmit an invalid cpn--who are claiming that when they call their home phones from the office, their internal (sip) caller name appears on the caller id along with the invalid cpn, which makes no sense from a CNAM lookup standpoint. the only thing i could think of (other than they are nuts/lying) is that their gateway is transmitting the sip callername in the IAM and the carrier is passing that along instead of doing a lookup. the btn is the same for all users so that can be ruled out.
they are all on cablevision or time warner.
thanks,
milosz
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