Welltech Dialogic SS7 Protocols ISUP - Manual (Page 80)

Section 6 Interface to Application
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6.7 Parameter Definitions
The following section defines the parameters that are used in messages
between the local user and ISUP. The parameters are used in the parameter
area of ISP_MSG_TX_REQ (0xc700) and ISP_MSG_RX_IND (0x8701)
messages as detailed in the appropriate message specifications.
Where possible, parameters are defined by reference to either ITU-T Q.763
(1992), ITU-T Q.763 (1997), ITU-T Q.1902.3 (2000) or ANSI T1.113 (1995)
and the format of the parameter is identical to that formatted over the
network.
Where there are differences from the standards, or where additional
information is required for clarity, the parameter is described in subsequent
sub-sections. A set of notes after the table provides further detail where
necessary.
Note: The maximum and minimum length of parameters described below excludes the
name and length octets, whereas they are usually taken into account in ITU-T and
ANSI specs.
Refer to Appendix A: ISUP National Variants on page 171 for the list of
supported national specific parameters.
Value Length
Parameter Name
Hex Dec
Definition/Reference
Min Max
Notes
Access delivery
information 0x2e 46 Q.763 Section 3.2 1 1 1
Access transport 0x03 3 Q.763 Section 3.3 1 255 1
Application transport 0x78 120 Q763 Addenda (09/98) 3 255 1, 4
Automatic Congestion
Level 0x27 39 Q.763 Section 3.4
(09/97) 1 1
Automatic rerouting 0x96 150 Q.1902.3 (amd 3)
section 6.107 1 2 -
Backward call indicators 0x11 17 Q.763 Section 3.5 2 2
Backward GVNS 0x4d 77 Q.763 Section 3.62
(09/97) 1 1 1
Business group 0xc6 198 T1.113 Section 3.3A 9 255 1
Call diversion information 0x36 54 Q.763 Section 3.6 1 1 1
Call diversion treatment
indicators 0x6e 110 Q.763 Section 3.72
(09/97) 1 1 1
Call history information 0x2d 45 Q.763 Section 3.7 2 2 1
Call offering treatment
indicators 0x70 112 Q.763 Section 3.74
(09/97) 1 1 1
Call reference 0x01 1 Q.763 Section 3.8
T1.113 Section 3.5 5 6 1, 2
Call transfer number 0x45 69 Q.763 Section 3.64
(09/97) 2 18 -
Call transfer reference 0x43 67 Q.763 Section 3.65
(09/97) 1 1