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The MTP3 User Adaptation Layer provides the equivalent set of primitives at its upper layer to the MTP3 users as provided by the MTP Level 3. In this way, the ISUP (ISDN User Part) and/or SCCP (Signalling Connection Control Part) layer is unaware that the expected MTP3 services are offered remotely and not by a local MTP3 layer. In effect, the M3UA extends access to the MTP3 layer services to a remote IP based application. The M3UA does not itself provide the MTP3 services.

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Posted by justfawad

Its simply MTP3 User Adaptation Layer.

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Posted by kk_kumar

M3UA is MTP3 User Adaptation Layer.It basically provides the equivalent set of primitives at its upper layer to the MTP3 users as provided by the MTP Level 3.

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Posted by sagitraz