{"draft":"draft-ietf-sigtran-dua-08","doc_id":"RFC4129","title":"Digital Private Network Signaling System (DPNSS)\/Digital Access Signaling System 2 (DASS 2) Extensions to the IUA Protocol","authors":["R. Mukundan","K. Morneault","N. Mangalpally"],"format":["ASCII","HTML"],"page_count":"15","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Signaling Transport","abstract":"This document defines a mechanism for backhauling Digital Private\r\nNetwork Signaling System 1 (DPNSS 1) and Digital Access Signaling\r\nSystem 2 (DASS 2) messages over IP by extending the ISDN User\r\nAdaptation (IUA) Layer Protocol defined in RFC 3057.  DPNSS 1,\r\nspecified in ND1301:2001\/03 (formerly BTNR 188), is used to\r\ninterconnect Private Branch Exchanges (PBX) in a private network.\r\nDASS 2, specified in BTNR 190, is used to connect PBXs to the\r\nPSTN.  This document aims to become an Appendix to IUA and to be\r\nthe base for a DPNSS 1\/DASS 2 User Adaptation (DUA) implementation.  [STANDARDS-TRACK]","pub_date":"August 2005","keywords":["backhauling","isdn user adaptation","pbx","private branch exchanges"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC4129","errata_url":null}