The introduction to this article provides insufficient context for those unfamiliar with the subject. Please help improve the article with a good introductory style.

This article is not about the M/M/1 model in queuing theory.

MM5 is the interface between MMSC and other network elements like HLR or Domain Name Server

The communication over MM5 Interface is generally to fetch the routing information.

MM5 has been defined by the 3GPP in TS 23.140 as a simple reference to Mobile Application Part.

External links

• - 3GPP TS 23.140