1. Issues with ANI to PSTN IFAST-14 Lima, Perú October 4-5, 2000

2. Typical roaming situation

3. Alternatives to send in the calling number field of the signaling to the PSTN n n MIN n n TLDN n n A fix number n n The real number in its local, national or international format (E.164)

4. Recommendations n n A solution in the short term is to send a fix ANI to the PSTN to avoid any problem in the call completion to the PSTN. n n In the long term the MDN field of IS-41 should be activated to send the ANI and to be able to use the services of redialing and identification.