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Interworking Switched Circuit and Voice-over–IP Networks

Glossary

C7
Common Channel Signaling System 7 (also called "SS7")

ISDN
Integrated Services Digital Network

ISUP
Signaling System 7 ISDN User Part

M2PA
MTP Level-2 Peer-to-Peer Adaptation Layer

M2UA
MTP Level-2 User Adaptation Layer

M3UA
MTP Level-3 User Adaptation Layer

MAP
Mobile Application Part

MTP
Signaling System 7 Message Transfer Part

PLMN
Public Land Mobile Network

PSTN
Public Switched Telephone Network

SCCP
SS7 Signaling Connection Control Part

SEP
Signaling Endpoint

SCP
SS7 Service Control Point

SS7
Common Channel Signaling System No. 7 (also called "C7")

SSP
SS7 Service Switching Point (also called a "central office" switch)

STP
SS7 Signal Transfer Point

SUA
SCCP User Adaptation Layer

TCAP
Signaling System 7 Transaction Capabilities Part

TCP
Transmission Control Protocol (often called "TCP/IP")

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