ISUP

Schematic of the ISUP layer

The ISDN User Part (ISUP) is the highest layer in the SS7 signaling stack and is responsible for the handling of calls.

A conceptual illustration of the ISUP protocol layer is provided on the right.

TelcoBridges and ISUP

TelcoBridges supports ISUP as part of its SS7 signaling stack implementation. It also offers the following functionality: ISUP

• Control of up to 30,000 CICs per system

Supported ISUP variants

• ANSI 88, T1.113 (1998)
• ANSI 92, T1.113 (1992)
• ANSI 95, T1.113.1 – T1.113.4 (1995)
• ITU 92, Q.761 – Q.764 (1993)
• ITU 97, Q.761 – Q.764 (1997), Q.763 Addendum 1 (05/1998), Q.765 ISUP ASE module (05/1998)
• Q.767, ITU 1991
• Singapore Telecom, Common Channel Signalling System N.7, Singapore Telecom, 1988
• Telcordia 97, GR-317, GR-394
• ISUP UK
• ETSI (V2 and V3): ETS 200 356, ETS 300 356
• ISUP China

Related actions

• Create an ISUP Stack
• Create an ISUP Network
• Create an ISUP User Part
• Create an ISUP Interface
• Verify status of SS7 ISUP elements

References

• Wikipedia article