Bearer capabilities Packet-switched capabilities
TE 2
R
S
NT 2
T
U
NT 1
4 wires
TA
S
ISDN switch
ISDN switch
LT
2 wires Transmission Line
U
LT
Non-switched capabilities
User-network signaling
ED D II TT II O ON N 4
Central Customer Office Premises
Circuit-switched capabilities
S
NT 1
TE 1
Transmission Line
Common-channel signaling capabilities
Functional Group
NEW ETSI Call Control Procedure
Reference Point ISDN Functional Groups and Reference Points
User-user signaling
ISDN CPE
Line Termination (LT) Network Termination 1 (NT1): handles physical layer interface functions such as line termination, power transfer and timing.
ISDN Switch
ISDN Switch
IBT-300 ISDN BRA/PRA Tester
ISDNpartner
For installation, commissioning and maintenance of ISDN BRA and PRA, maintenance of datacommunications over ISDN, V5.1/V5.2 analysis. (Also available in BRA-only and PRA-only configurations.)
ISDN Expert System
ISDN CPE
Activate Layer 1
IBT-10/-10U
UI (ID Request)
IBT-20
UI (ID Assign)
Terminal Equipment 1 (TE1): end-user equipment such as ISDN telephones or data terminals compliant with ISDN call set up procedures and capable of interfacing directly to the S bus.
ISDN BRA S/T/U Tester
Multiport Protocol Analyzer For fault detection and maintenance of datacommunications over WAN and ISDN Basic Rate Access.
Make a Phone Call by Lifting the Handset
Initiate Activate Message (IAM)
I (SETUP)
Activate Layer 1 UI (SETUP)
2000 Test PadTM
UI (ID Request) UI (ID Assign)
IBT-5
SABME
Handset Ringback Address Complete Message (ACM)
I (Alert)
I (CONN)
Answer Message (ANM)
I (CONN)
I (CONN.ACK.)
ISDN Implementation
Layer 1
Phone Ring
I (Alert)
ISDN BRA S/T Tester
For installation, commissioning and maintenance.
UA
Answer the Phone
For installation, first level of commissioning and maintenance.
2230 E1/Data Communications Analyzer. Tests multiple Business Services including ISDN PRA, DASS2 and Frame Relay.
I (CONN.ACK.) B-Channel Connection
Disconnect
Q.931 Call Setup procedures over the D Channel
Application Layer Presentation Layer Session Layer Transport Layer Network Layer Data Link Layer Physical Layer
Q.921 (LAPD) D Channel link layer
I (DISC)
Release Message (REL)
I (DISC)
I (REL)
Release Complete Message (REL)
I (REL)
I (REL COMP)
I (REL COMP)
DISC
DISC
UA
UA
Deactivate Layer 1
Deactivate Layer 1
I.431 Primary Rate
I.430 Basic Rate
Frame Structure at S and T Reference Points
Frame Structure at U Reference Point
Supplementary services
1,5 ms 48 bits in 250 microseconds B1
Handles the physical, electrical, and procedural specifications required to transmit data accross the physical medium or cables. Defines connectors, pinouts and electrical voltage and current levels. Works in units of bits.
Layer 2
NT to TE
B2
0 D L. F L. 1 0
E D A FA N
# Bits 18 Bits positions 1-18
B2
B1
E D L. F L.
E DS
E DM
TE to NT B1 D L. F L.
L. D L. FA L.
B2
B1
B2 L. D L.
L. D L.
L. D L. F L.
= = = =
N = B1 = B2 = A =
framing bit DC balancing bit D-channel bit D-echo-channel bit
bit set to a binary value N = FA (NT to TE) bit within B channel 1 bit within B channel 2 bit used for activation
Q.921 Address Field
FA = Auxiliary framing bit S = Reserved for future standardization M = multiframing bit
Q.921 Control Field Closing Flag
First bit Transmitted
Information Control Address Opening Flag
FCS
FCS
Data link 8
7
6
5
4
3
SAPI
2
1
C/R
EA0
TEI
Format
Octet
EA1
Responses
Information Transfer
Supervisory
RR (receive ready)
RR (receive ready)
0
RNR (receive not ready)
RNR (receive not ready)
0
REJ (reject)
REJ (reject)
0
DM (disconnected mode)
C/R - Command/response field bit EA0 - Extended Address bit 0 EA1 - Extended Address bit 1
DISC (disconnect) UI (unnumbered Information)
Unnumbered
UA (unnumbered acknowledgement) FRMR (frame reject) XID (Exchange Identification)
XID (Exchange Identification)
Layer 3
FCS
Information
Control Address Opening Flag
First bit Transmitted
Hex
8
7
6
5
4
3
2
1
Protocol discriminator
1 1 1 1 1 1
0
0
0
0
Octet 1
Lenght of call reference value (octets)
Flag
Call reference value (CRV)
0
Message type
2 3 etc.
Other information elements as required
Protocol Discriminator 8
7
6
5
4
3
2
1
Octet
0
1
Q.931 user-network call control messages 0
0
0
0
1
0
0
http://www.acterna.com
8
7
6
5
4
3
2
1
➜
Network Addresses, switches and routes packets between hosts. Fragments and reassembles packets. Works in units of packets.
0 0
2 1 O
--
P 1
--
0
N(R) 0 0
0
N(R) 0 0
0
N(R) 0 1
0
0
1
P/F 0 1
-05 --
0
P/F 0 1
09
P/F
--
01
Octet 4 5 4 5 4 5 4 5
00 04 08 10 14 18 1C 1E 20 27 28 29 2C 34 36 38 39 40 42 43 44 45 46 4C 4D 6C 6D 70 71 74 78 79 7C 7D 7E 7F
0 0 0 0 0 1
0 0 1 1 1 0
0 1 0 0 1 1
0 0 -
0 0 -
0 0 -
0 1 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 Other values
0 0 0 1 1 1 1 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
0 0 1 0 0 1 1 1 0 0 1 1 1 0 0 1 1 0 0 0 0 0 0 1 1 1 1 0 0 0 1 1 1 1 1 1
0 1 0 0 1 0 1 1 0 1 0 0 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 0 0 1 0 0 1 1 1 1
0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 0 1 0 1 0 1
Control Closing CRC Flag INFO UI
Address Opening TEI=127 SAPI=63 Flag
Octet Hex 1 2 3
Octet
1
2
3
Message Name
Management entity identifier
Reference number Ri
Message Type
Identity request (user to network)
0000 1111
0-65535
0000 0001
Ai = 127, Any TEI value acceptable
Identity assigned (network to user)
0000 1111
0-65535
0000 0010
Ai = 64-126, Assigned TEI value
80 88 89 90 91 4
P
1
1
1
1
6F/7F
4
Identity denied (network to user)
0000 1111
0-65535
0000 0011
Ai = 64-126, denied TEI value Ai = 127, No TEI value available
0
F
1
1
1
1
0F/1F
4
Not used (coded 0)
0000 0100
0
Identity check request (network to user)
0000 1111
0
Ai = 127, Check all TEI values Ai = 0-126, TEI value to be checked
0
1
0
P
0
0
1
1
43/53
4
Identity check response (user to network)
0000 1111
0-65535
0000 0101
Ai = 0, TEI value in use
0
0
0
P
0
0
1
1
03/13
4
Identity remove (network to user)
0000 1111
Not used (coded 0)
0000 0110
Ai = 127, Request for removal of all TEI values Ai = 0-126, TEI values to be removed
0
1
1
F
0
0
1
1
63/73
4
Identity verify (user to network)
0000 1111
Not used (coded 0)
0000 0111
Ai = 0-126, TEI value to be checked
1
0
0
F
0
1
1
1
87/97
4
1
0
1 P/F 1
1
1
1
AF/BF
4
Single octet information elements Reserved Shift More Data Sending Complete Congestion Level Repeat Indicator Variable Length Information Elements Segmented Message Bearer Capability Cause Call Identity Call State Channel Identification Facility Progress Indicator Network-specific Facilities Notification Indicator Display Date/time Keypad Facility Signal Switchhook Feature Activation Feature Indication Information Rate End-to-end Transit Delay Transit Delay Selection and Indication Packet Layer Binary Parameters Packet Layer Window Size Packet Size Connected Party Number Connected Party Sub-address Calling Party Number Calling Party Sub-address Called Party Number Called Party Sub-address Redirecting Number Transit Network Selection Restart Indicator Low Layer Compatibility High Layer Compatibility User-user Escape For Extension Reserved
ETSI Message Type 01 02 03 05 07 0D 0F
0 0 0 0 0 0 0
7
0 0 0 0 0 0 0
6
0 0 0 0 0 0 0
5
0 0 0 0 0 0 0
4
0 0 0 0 0 1 1
3
0 0 0 1 1 1 1
2
0 1 1 0 1 0 1
1
0 0 0 0 0
0 0 0 0 0
0 0 1 0 1
0 0 1 1 1 1
Transfer mode Circuit mode Packet mode Information transfer rate Packet mode call 64 kbit/s 2 x 64 kbit/s 384 kbit/s 1536 kbit/s 1920 kbit/s
1 0 0 0 0 0
0 0 0 0 0 0
0 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 1 1
0 0 0 1 0 1
8 7 6 5 4 3 2 1 0 1 1 1 1 1 0 1 0 0 0 0 0 . . . 1
0 1
0 0 0 0 0 0 1 1 0 0 0 0
High layer characteristics identification Telephony Facsimile Group 2/3 (Rec. F.182) Facsimile Group 4 Class.1 (Rec. F.184) Teletex service (F.230) and Fac. Cl. II and III Teletex service (F.220) Teletex service (F.200) Syntax based Videotex (Rec. F.300 and T.102) Int. Videotex Interworking (Rec. F.300 and T.101) Telex service (Rec. F.60) Message Handling System (X.400 series) OSI application (X.200 series) Audiovisual = Videoteleph., (Rec. F.721 and AV.242)
1 0 0 91 4
0/1 01/81 04/84 21/A1 24/A4 28/A8 31/B1 32/B2 33/B3 35/B5 38/B8 41/C1 60/E0
0 0 0 0 0 0 0 0 0 0 1 1
0 0 1 1 1 1 1 1 1 1 0 1
0 0 0 0 0 1 1 1 1 1 0 0
0 0 0 0 1 0 0 0 0 1 0 0
0 1 0 1 0 0 0 0 1 0 0 0
1 0 1 0 0 1 0 1 1 0 1 0
MSN DDI SUB CLIP CLIR COLP COLR MCID
Multiple Subscriber Number Direct Dialing-In SUB-addressing Calling-Line Identification Presentation Calling-Line Identification Restriction COnnected-Line identification Presentation COnnected-Line identification Restriction Malicious Call IDentification
Call Offering Services
TP CFU CFB CFNR CD ECT
Terminal Portability Call Forwarding Unconditional Call Forwarding Busy Call Forwarding No Reply Call Deflection Explicit Call Transfer
Call Completion Services
CW HOLD CCBS
Call Waiting Call HOLD Completion of Calls to Busy Subscriber
Multiparty
CONF 3TPY
CONFerence calling Three-PartY service
Information element High Layer Compatibility Length of High Layer Compatibility (max. 5 octets) Coding standard CCITT standardized coding as decribed below Interpretation First high layer charact. identif. to be used in the call Presentation method of protocol profile High layer protocol profile (without spec. of attribut.)
0 0
0/1
40/C0 10/90 11/91 13/93 15/95 17/97
ETSI Cause Value Dec
8
0 1 1 0 0
Octet Hex 1 7D 2 3
Number Identification Services
Community of Interest and Call Restriction Services
CUG
Closed User Group
Charging Services
AOC-S AOC-D AOC-E
Advice Of Charge at setup time Advice Of Charge during the call Advice Of Charge at end of call
Additional Transfer Information Services
UUS
User-to-User Signaling (UUS1, UUS2, UUS3)
Action indicator Ai
1
Hex
0 0 0 1 1
Information element Bearer capability Length of Bearer capability (max. 13 octets) Coding standard CCITT standardized coding as decribed below Information transfer capability Speech Unrestricted digital information Restricted digital information 3,1 kHz audio 7 kHz audio
0 0 1 0
4
1
Information Element Identifier
8 7 6 5 4 3 2 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0
First bit Transmitted
0
ETSI Information Element Identifier
ETSI Message Structure Closing Flag
0
3
N(S)
N(R)
SABME(set asynchronous balanced mode extended)
TEI - Terminal Endpoint Identifier 0 - 63 Fixed TEI assignment 64-126 Automatic TEI assignment 127 Group TEI for broadcast data link connection
6 5 4
I (information)
3
First bit Transmitted
Teleservices
Bearer services
Hex Config.
Binary Configuration 8 7
2
Network Side User Side C/R Value C/R Value 1 0 Commands from 1 0 Responses to Commands to 0 1 Responses from 0 1
SAPI - Service Access Point Identifier 0 Call control procedures 1 Packet mode using Q.931 Call procedures 16 Packet communications conforming to X.25 Level 3 procedures 63 Layer 2 Management procedures All others reserved for future use
Commands
Customer data channels B1, B2 and D Frame Word Inverted Frame Word M-channel bits, M1-M6
Frame Structure for TEI Management
Control Address Opening Flag
Information
6 235-240
216 19-234
The CL channel (M bits) is a 4-kbit/s pipe designed to convey maintenance information over the local loop. This channel comprises: - the EOC commands (Embedded Operations Channel) used by the LT to send operation commands to the NT1 (Loopback request, etc.), - a CRC information for each multi-frame sent, - other information such as Activation and Deactivation command and indications (ACT, SAI, DEA...), FEBE, etc.
t
F L D E
= = = =
2B+D FW IFW CL
2 bits offset
Closing Flag
Frames and Addresses Packets. Provides error-free node-to-node connections and flow control. Provides mapping between Network Layer addresses. Works in units of frames.
CL
12 x (2B+D)
FW / IFW
Physical
DA-5
UA
Terminal Adapter (TA): equipment that supports ISDN call set up and provides an interface for connecting to TE2s.
7 6 5 4 3 2 1
Connection of any ISDN BRA protocol analyzer to the U interface for the maintenance of ISDN lines and equipment from any site along the local loop: access, repeater or central office.
ISDN PRA Tester
SABME
Terminal Equipment 2 (TE2): end-user equipment for non-ISDN environments (typically uses an RS232 interface).
OSI Model
ISDN U-Interface Monitor
First expert system on the market dedicated to the troubleshooting and maintenance of ISDN installations (access, equipment, private networks), ISDNpartner introduces a totally new concept into the ISDN test equipment world: the capability to detect, locate and solve problems without having to be an expert! This expert system is a software running on PC, and is compatible with the IBT-5, IBT-10/-10U, IBT-20, SST-1, DA-5 and DominoWAN ISDN.
Install the Phone
Network Termination 2 (NT2): handles function of an NT1 plus layer 2 and layer 3 functions such as multiplexing, switching and concentration.
IUM-10
ETSI message type
1 0 1 1 1 1 1
Call establishment Alerting Call Proceeding Progress Setup Connect Setup Acknowledge Connect Acknowledge
20 21 22 24 25 26 28 2D 2E 30 31 33 37
0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 1 1 1 1
0 0 0 0 0 0 1 1 1 0 0 0 0
0 0 0 1 1 1 0 1 1 0 0 0 1
0 0 1 0 0 1 0 0 1 0 0 1 1
0 1 0 0 1 0 0 1 0 0 1 1 1
Call Information Phase User Information Suspend Reject Resume Reject Hold Suspend Resume Hold Acknowledge Suspend Acknowledge Resume Acknowledge Hold Reject Retrieve Retrieve Acknowledge Retrieve Reject
45 46 4D 4E 5A
0 0 0 0 0
1 1 1 1 1
0 0 0 0 0
0 0 0 0 1
0 0 1 1 1
1 1 1 1 0
0 1 0 1 1
1 0 1 0 0
Call Clearing Disconnect Restart Release Restart Acknowledge Release Complete
60 62 64 6E 75 79 7B 7D
0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
0 0 0 0 1 1 1 1
0 0 0 1 0 1 1 1
0 0 1 1 1 0 0 1
0 1 0 1 0 0 1 0
0 0 0 0 1 1 1 1
Miscellaneous Segment Facility Register Notify Status Enquiry Congestion Control Information Status
1 2 3 6 7 16 17 18 19 21 22 26 27 28 29 30 31 34 38 41 42 43 44 47 49 50 53 55 57 58 63 65 66 69 70 79 81 82 83 84 85 86 88 90 91 95 96 97 98
Hex. Hex. Bit 8=1 01 02 03 06 07 10 11 12 13 15 16 1A 1B 1C 1D 1E 1F 22 26 29 2A 2B 2C 2F 31 32 35 37 39 3A 3F 41 42 45 46 4F 51 52 53 54 55 56 58 5A 5B 5F 60 61 62
81 82 83 86 87 90 91 92 93 95 96 9A 9B 9C 9D 9E 9F A2 A6 A9 AA AB AC AF B1 B2 B5 B7 B9 BA BF C1 C2 C5 C6 CF D1 D2 D3 D4 D5 D6 D8 DA DB DF E0 E1 E2
99 63 100 64 101 65 102 66 111 6F 127 7F Other values
E3 E4 E5 E6 EF FF
Cause Name Unallocated (unassigned) number No route to specified transit network No route to destination Channel unacceptable Call awarded and being delivered in an established channel Normal call clearing User busy No user responding No answer from user (user alerted) Call rejected Number changed Non-selected user clearing Destination out of order Invalid number format Facility rejected Response to "Status enquiry" Normal, unspecified No circuit/channel available Network out of order Temporary failure Switching equipment congestion Access information discarded Requested circuit/channel not available Resources unavailable, unspecified Quality of service unavailable Requested facility not subscribed Outgoing calls barred within CUG Incoming calls barred within CUG Bearer capability not authorized Bearer capability not presently available Service or option not available, unspecified Bearer capability not implemented Channel type not implemented Requested facility not implemented Only restricted digital information bearer capability is available Service or option not implemented, unspecified Invalid call reference value Identified channel does not exist A suspended call exists, but this call identity does not exist Call identity in use No call suspended Call having the requested call identity has been cleared Incompatible destination Non-existent CUG Invalid transit network selection Invalid message, unspecified Mandatory information element is missing Message type non-existent or not implemented Message not compatible with call state or message type non-existent or not implemented Information element/parameter non-existent or not implemented Invalid information element contents Message not compatible with call state Recovery on timer expiry Protocol error, unspecified Interworking, unspecified Reserved
X.25 Packet Bearer mode X.31 case A SETUP SAPI=
0
D
i ECT B CONN 0 I= P A S
Global Headquarters 20400 Observation Drive Germantown, Maryland 20876-4023 USA Toll free 1-800-638-2049 Tel +1-301-353-1550 Fax +1-301-444-8468
X.31 case B - X.25/B BC = unrestricted data CLD = X.25 gateway CHI = B channel only
SETUP SAPI=
0
D
i ECT B CONN 0 SAPI=
BC = Packet Bearer CLD = not present CHI = Any B channel
F
CON CALL
DATA ISDN network is not informed of the B-channel content. Multiplex is not possible
B
SAPI=
0
D To the nearest Packet Handler
To the X.25 gateway B
SETUP
CALL
CALL
X.31 case B - X.25/D
ONF
C CALL
DATA ISDN network can multiplex X.25 connection in the first switch.
ECT D CONN 0 SAPI= DISCO NNEC T SAPI= 0 CALL SAPI= 16
BC = Packet Bearer CLD = not present CHI = D channel only
North America 20400 Observation Drive Germantown, Maryland 20876-4023 USA Toll free 1-800-638-2049 Tel +1-301-353-1550 Fax +1-301-444-8468
West Europe Arbachtalstrasse 6 D-72800 Eningen u. A. Germany Tel +49 7121 86 2222 Fax +49 7121 86 1222
Latin America Av. Eng. Luis Carlos Berrini 936-8/9 Andar 04571-000 São Paulo, SP Brazil Tel +55 11 5503 3800 Fax +55 11 5505 1598
East Europe, Middle East & Africa Elisabethstrasse 36 Postfach 13 A-2500 Baden Austria Tel +43 2252-85521 0 Fax +43 2252-80727
Asia-Pacific 42, Clarendon Street PO Box 141 South Melbourne, Victoria 3205 Australia Tel +61 3 9690 6700 Fax +61 3 9690 6750
1st Neopalimovskiy per. 15/7 (4th floor) 119121 Moscow Russia Tel +7 095 248 2508 Fax +7 095 248 4189
CAUSE = 07 CLD = X.25 address
CONF CALL 16 SAPI= DATA SAPI=16
ISDN network can multiplex X.25 connection in the first switch.
BC = Bearer capability CLD = Called address CHI = Channel identification
Regional Sales Headquarters
Acterna is present in more than 80 countries. To find your local sales office, go to www.acterna.com E-mail Address:
[email protected]
LL/RN/POØ1/Ø2Ø1/AE
TE 1
Customer Central Premises Office
PBX
- Printed in France
Terminals
