07.023GPPTerminal Adaptation Functions (TAF) for services using asynchronous bearer capabilitiesTS
The TAF will need to provide the following information in addition to the Bearer capability values shown in annex B of GSM 07.01  in the case of Dedicated PAD access:
Numbering Plan Identifier : Private Number Plan
Type of Number : Dedicated PAD
In addition, the called number should be a short code, coded as indicated in GSM 09.05 .
Annex A (Normative):