[VoiceOps] TMobile Sending Calls to LRN not Called Number
Paul Timmins
ptimmins at clearrate.com
Thu Jul 1 12:22:01 EDT 2021
ugh, in the CalledPartyNumber field, not CallingParty. Have not had
enough caffeine today. Might not be enough caffeine on the planet for today.
On 7/1/21 12:15 PM, Paul Timmins via VoiceOps wrote:
> STIR/SHAKEN isn't implemented at all in TDM world. I've had problems
> on and off for years where a carrier will take SS7 traffic, send it
> over some janky arrangement that strips the GenericAddress parameter
> (where your actual destination number is hidden in the IAM - when you
> dip in SS7 you send the LRN as your CallingPartyNumber, set the flag
> indicating the call is dipped, and put the original TN in the
> GenericAddressParameter field) and then I get a pile of calls from
> specific carriers rocking into my LRN until I can get one of them to
> call their carrier and report the issue, which fixes it.
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