Acronym for Service Switching Point. This is what a
telecomunications
switch is called in an
SS7 network. All
phone lines are attached to an
SSP, which is also attached to the rest of the
SS7 network via links to
STPs. The
SSP is the basic
element of an
SS7 network, without it the rest is useless, an
SSP is the origination point for all
phone calls and the activities that go with them. (
CNAM,
CLASS,
E800, etc.) In contrast two
SSPs could be linked to allow
traffic between them, thus removing the need for
STPs. Note however, that this would be horribly inefficient.
Per request:
Mirror the diagram along the vertical axis to get a VERY simple picture of how this works
°/\° == Telephone
______ ______
°/\° ----------------| | | |
| | | |
°/\° ----------------| SSP |----| STP |----
| | | |
°/\° ----------------| | | |
|______| |______|