View source for TestPageStep2Second versionA

{{DISPLAYTITLE:TestPageStep2Second}}

'''First version of step 2 second item'''

Now that you have configured the MTP3 layer of your SS7 system, you must create an ISDN user part stack. The ISDN user part (ISUP) is the highest layer in the SS7  signaling stack and is responsible for the handling of calls.  

[[Category:TestCatv2.5]]
[[Category:TestCatv2.6]]