We are trying to strip out the Dialed Number IS ( DNID or DNIS depending on which article you read) so that we can automatically route to a specific extension, avoiding our auto attendant.
Nobody seems to know if this information is in the sip header and if it is, which part of it contains the number the calling party is dialing to reach us. Wiki and other sources have only a bare minimum of information and the little there is conflicts. Have you had occasion to try to utilize this data?
Someone out there help us