0x23 BT IUP Parameters

The BT IUP Parameters ICB (0x23) is used to transport any BT IUP Parameters message between the host and the CSP.

Important! In general, messages will contain one BT IUP ICB with one or more BT IUP TLVs.

ICB Type | 0x02 (Data)
ICB ID | 0x23
Data Length | Variable
Data[0] | Tag value corresponding to a unique element of a BT IUP message.
Data[1] | Number of bytes to follow (usually 0x02)
Data[2] | H0 (See following table.)
Data[3] | H1 (See following table.)
Data[2+] | Message Data

Message Types

The following table lists the messages in alphabetical order. The table also includes the H0 and H1 octets in binary code and the decimal code in brackets.

Message Title | Message Group Code (H0) | Message Type Code (H1)
Additional Call Information (ACI) - Type 1 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 2 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 3 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 4 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 5 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 6 | 00000111[7] | 00000100[4]
Additional Call Information (ACI) - Type 7 | 00000111[7] | 00000100[4]
Additional Setup Information (ASUI) - Type 1 | 00000001[1] | 00000100[4]
Additional Setup Information (ASUI) - Type 2 | 00000001[1] | 00000100[4]
Address Complete Message (ACM) | 00000011[3] | 00000000[0]
Answer (ANS) | 00000100[4] | 00000000[0]
Blocking (BLO) | 00000101[5] | 00000001[1]
Blocking Acknowledgement (BLA) | 00000101[5] | 00000011[3]
Call Drop Back (CDB) | 00000011[3] | 00001010[10]
Circuit Free (CCF) | 00000101[5] | 00000000[0]
Clear (CLR) | 00000100[4] | 00000001[1]
Coin and Fee Checking (CFC) | 00000100[4] | 00000100[4]
Confusion (CFN) | 00000111[7] | 00000000[0]
Congestion (CNG) | 00000011[3] | 00000010[2]
Connection Not Admitted (CNA) | 00000011[3] | 00000100[4]
Enveloped ISUP Message (EIM) | 00001000[8] | 00000010[2]
Enveloped ISUP Segmented Message (EISM) | 00001000[8] | 10000010[130]
Extend Call Message (ECM) | 00000100[4] | 00000111[7]
Final Address Message (FAM) | 00000000[0] | 00000011[3]
Howler (HLR) | 00000100[4] | 00000110[6]
Initial Address Message (IAM) | 00000000[0] | 00000000[0]
Initial and Final Address Message (IFAM) | 00000000[0] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 1 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 2 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 3 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 4 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 5 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 6 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 7 | 00000111[7] | 00000001[1]
ISDN Composite Service Information Message (SIM) -Type 8 | 00000111[7] | 00000001[1]
Nodal End-to-End Data (NEED) | 00000111[7] | 00001011[11]
Operator Condition Message (OCM) | 00000111[7] | 00000101[5]
Operator Override (OOR) | 00000100[4] | 00000101[5]
Overload (OLM) | 00000101[5] | 00000101[5]
Protocol Negotiation Message (PNM) | 00001000[8] | 00000001[1]
Re-answer (RAN) | 00000100[4] | 00000010[2]
Release (REL) | 00000100[4] | 00000011[3]
Repeat Attempt Message (RAM) | 00000011[3] | 00000101[5]
Send Additional Set-up Information (SASUI) | 00000010[2] | 00000100[4]
Send All Digits (SAD) | 00000010[2] | 00000011[3]
Send N Digits (SND) | 00000010[2] | 00000010[2]
Send Service Message (SSM) | 00000111[7] | 00000010[2]
Service (SER) | 00000111[7] | 00000011[3]
Subscriber Engaged Message (SEM) | 00000011[3] | 00000110[6]
Subscriber Out-of-Order (SOO) | 00000011[3] | 00000111[7]
Subscriber Address Message (SAM) | 00000000[0] | 00000010[2]
Swap | 00000111[7] | 00000111[7]
Terminal Congestion Message (TCM) | 00000011[3] | 00000011[7]
Unblocking (UBL) | 00000101[5] | 00000010[2]
Unblocking Acknowledgement (UBA) | 00000101[5] | 00000010[2]
User-initiated Suspend (SUS) | 00000111[7] | 00001100[12]
User-initiated Resume (RES) | 00000111[7] | 00001101[13]
User to User Data (UUD) | 00000111[7] | 00000110[6]

See Information Control Block.
Blocking Acknowldgment message
See Integrated Services Digital Network User Part.
See Integrated Services Digital Network.
See Recorded Announcements.
Random Access Memory