by Nefariousparity » Thu May 07, 2020 12:10 am
I ask, because I looked and did not find a satisfying answer. On my switch, I can put "BLANK" and potentially block this. This is something I recently was told with a large provider the other day.
"ok super - yes the caller ID is still the same, but carriers are catching on to the SIP Name info coming from dialers and certain ones are shutting down calls before they even reach the terminating party
so the field is the SIP DISPLAY INFO - not the FROM or the REMOTE PARTY ID - neither of which we need changed, only the SIP DISPLAY INFO - which is typically a calling party NAME for like office / PBX environment - but on the PSTN, the CNAM is pulled at the last mile by the LEC for that called number, so the SIP DISPLAY INFO is really useless in the PSTN applications, generally anyway. Canada is a bit different there, since no CNAM database exists in Canada, they do pull the SIP DISPLAY INFO header for calling party name info."
"but the bigger issue here is that carriers are starting to detect these long names with SIP DISPLAY INFO - they stand out like a sore thumb - and they know its a dialer generated call just by seeing that info header"
We already have Stir/Shaken, and now I see this. As always thank you for the response William.
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