***file q9313svn.htm
- Octet 1: | mandatory |
bits 8-1 | Protocol discriminator (08 H) |
- Octet 2: | mandatory |
bits 8-5 | 0000 |
bits 4-1 | Length of call reference value (1 or 2 octets) |
- Octet 3: | mandatory |
bit 8 | Call reference flag
set to 0 if the message is sent from the side that originates the call reference set to 1 if the message is sent to the side that originates the call reference. |
bits 7-1 | Call reference value, assigned by the originating side of the interface for a call. |
- Octet 4: | exists only if octet 2 = 00000010 |
bits 8-1 | Call reference value (Low order octet) |
- Octet: | mandatory |
bit 8 | 0 |
bits 7-1 | Message type |
- Octets: | optional |
bits 8-1 | One or several information element(s) |
They are 2 possible structures:
bits 8 _ _ _ _ _ _ 1 | len | Information element |
0 0 0 0 1 0 0 0 | 1 | Protocol discriminator (08 H) |
octets 2-3 | 2 | Call reference (one octet value) |
octet 4 | 1 | Message type |
octets 5-n | Optional information element |
bits 8 _ _ _ _ _ _ 1 | len | Information element |
0 0 0 0 1 0 0 0 | 1 | Protocol discriminator (08 H) |
octets 2-4 | 3 | Call reference (two octets value) |
octet 5 | 1 | Message type |
octets 6-n | Optional information element |
***q9311sc3.htm
bits 8 _ _ _ _ _ _ 1 | hex | Message type |
0 0 0 _ _ _ _ _ | Call establishment messages | |
0 0 0 0 1 | 01 | ALERTING |
0 0 0 1 0 | 02 | CALL PROCEEDING |
0 0 1 1 1 | 07 | CONNECT |
0 1 1 1 1 | 0F | CONNECT ACKNOWLEDGE |
0 0 0 1 1 | 03 | PROGRESS |
0 0 1 0 1 | 05 | SETUP |
0 1 1 0 1 | 0B | SETUP ACKNOWLEDGE |
0 0 1 _ _ _ _ _ | Call information phase messages | |
0 0 1 0 0 | 24 | HOLD * |
0 1 0 0 0 | 28 | HOLD ACKNOWLEDGE * |
1 0 0 0 0 | 30 | HOLD REJECT * |
0 0 1 1 0 | 26 | RESUME |
0 1 1 1 0 | 2E | RESUME ACKNOWLEDGE |
0 0 0 1 0 | 22 | RESUME REJECT |
1 0 0 0 1 | 31 | RETRIEVE * |
1 0 0 1 1 | 33 | RETRIEVE ACKNOWLEDGE * |
1 0 1 1 1 | 37 | RETRIEVE REJECT * |
0 0 1 0 1 | 25 | SUSPEND |
0 1 1 0 1 | 2D | SUSPEND ACKNOWLEDGE |
0 0 0 0 1 | 21 | SUSPEND REJECT |
0 0 0 0 0 | 20 | USER INFORMATION |
0 1 0 _ _ _ _ _ | Call clearing messages | |
0 0 1 0 1 | 45 | DISCONNECT |
0 1 1 0 1 | 4D | RELEASE |
1 1 0 1 0 | 5A | RELEASE COMPLETE |
0 0 1 1 0 | 46 | RESTART |
0 1 1 1 0 | 4E | RESTART ACKNOWLEDGE |
0 1 1 _ _ _ _ _ | Miscellaneous messages | |
1 1 0 0 1 | 79 | CONGESTION CONTROL |
0 0 0 1 0 | 62 | FACILITY |
1 1 0 1 1 | 7B | INFORMATION |
0 1 1 1 0 | 6E | NOTIFY |
0 0 1 0 0 | 64 | REGISTER * |
0 0 0 0 0 | 60 | SEGMENT |
1 1 1 0 1 | 7D | STATUS |
1 0 1 0 1 | 75 | STATUS ENQUIRY |
(*): Q932 recommendation.
***file q9317oz7.htm
bits 8 _ _ _ _ _ _ 1 | hex | Single octet IE |
1 0 0 1 _ _ _ _ | 9_ | Shift |
0 1 0 0 0 0 0 | A0 | More Data |
0 1 0 0 0 0 1 | A1 | Sending Complete |
0 1 1 _ _ _ _ | B_ | Congestion Level |
1 0 1 _ _ _ _ | D_ | Repeat Indicator |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 0 0 0 0 0 0 0 | 00 | Segmented Message |
0 0 0 0 1 0 0 | 04 | Bearer Capability |
0 0 0 1 0 0 0 | 08 | Cause |
0 0 1 0 0 0 0 | 10 | Call Identity |
0 0 1 0 1 0 0 | 14 | Call State |
0 0 1 1 0 0 0 | 18 | Channel Identification |
0 0 1 1 1 0 0 | 1C | Facility |
0 0 1 1 1 1 0 | 1E | Progress Indicator |
0 1 0 0 0 0 0 | 20 | Network Specific Facilities |
0 1 0 0 1 1 1 | 27 | Notification Indicator |
0 1 0 1 0 0 0 | 28 | Display |
0 1 0 1 0 0 1 | 29 | Date/Time |
0 1 0 1 1 0 0 | 2C | Keypad Facility |
0 1 1 0 0 1 0 | 32 | Information Request * |
0 1 1 0 1 0 0 | 34 | Signal |
0 1 1 0 1 1 0 | 36 | Switchhook |
0 1 1 1 0 0 0 | 38 | Feature Activation |
0 1 1 1 0 0 1 | 39 | Feature Indication |
0 1 1 1 0 1 1 | 3B | Endpoint Identifier * |
0 1 1 1 0 1 0 | 3A | Service Profile Identification * |
1 0 0 0 0 0 0 | 40 | Information Rate |
1 0 0 0 0 1 0 | 42 | End-to-end Transit Delay |
1 0 0 0 0 1 1 | 43 | Transit Delay Selection and Indication |
1 0 0 0 1 0 0 | 44 | Packet layer binary Parameters |
1 0 0 0 1 0 1 | 45 | Packet layer Window Size |
1 0 0 0 1 1 0 | 46 | Packet layer Size |
1 1 0 1 1 0 0 | 6C | Calling Party Number |
1 1 0 1 1 0 1 | 6D | Calling Party Subaddress |
1 1 1 0 0 0 0 | 70 | Called Party Number |
1 1 1 0 0 0 1 | 71 | Called Party Subaddress |
1 1 1 0 1 0 0 | 74 | Redirecting Number |
1 1 1 0 1 1 0 | 76 | Redirection Number |
1 1 1 1 0 0 0 | 78 | Transit Network Selection |
1 1 1 1 0 0 1 | 79 | RestarT indicator |
1 1 1 1 1 0 0 | 7C | Low-Layer Compatility |
1 1 1 1 1 0 1 | 7D | High Layer Compatibility |
1 1 1 1 1 1 0 | 7E | User-User |
1 1 1 1 1 1 1 | 7F | Escape for extension |
(*): Q932 recommendation.
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
1 0 0 0 1 1 0 0 | 8C | Connected Number |
1 0 0 0 1 1 0 1 | 8D | Connected Subaddress |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 0 0 1 1 0 1 0 | 1A | Charging Advice |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 0 0 1 1 1 0 1 | 1D | Operator System Access |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 0 0 1 1 0 1 0 | 1A | Charging Advice |
0 1 1 1 0 1 0 0 | 74 | Redirecting Number |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 0 1 0 0 1 0 0 | 1D | User Capability |
bits 8 _ _ _ _ _ _ 1 | hex | Variable length IE |
0 1 1 1 0 1 0 1 | 75 | Redirecting Subaddress |
0 1 1 1 0 1 1 0 | 76 | Redirection Number |
0 1 1 1 1 0 1 1 | 7B | Call appearance |
bits 8 _ _ _ _ _ _ 1 | Information element |
1 _ _ _ _ _ _ _ | octet N without extension |
0 _ _ _ _ _ _ _ | octet (N+1) extended with three octets |
0 _ _ _ _ _ _ _ | octet (N+1)a (first of extension domain) |
0 _ _ _ _ _ _ _ | octet (N+1)b (second of extension domain) |
1 _ _ _ _ _ _ _ | octet (N+1)c (end of extension domain) |
***q93116nl.htm
Network side | User side | |||
Q931 | 300-102 | Q931 | 300-102 | |
T301 | 180s. | 180s. | 180s. | 180s. |
T302 | 10-15s | 10-15s | 15s | 15s |
T303 | 4s | 4s | 4s | 4s |
T304 | 20s | 20s | 15s | 30s |
T305 | 30s | 30s | 30s | 30s |
T306 | 30s | |||
T307 | 3mn | 3mn | ||
T308 | 4s | 4s | 4s | 4s |
T309 | 90s | 90s | 90s | 90s |
T310 | 10s | 10s | 10s | >40s |
T312 | T303+2s | |||
T313 | 4s | 4s | ||
T314 | 4s | 4s | 4s | 4s |
T316 | 2mn | 2mn | 2mn | 2mn |
T317 | < T316 | < T316 | < T316 | < T316 |
T318 | 4s | |||
T319 | 4s | |||
T320 | 30s | 4s | 30s | |
T321 | 30s | 30s | 30s | 30s |
T322 | 4s | 4s | 4s | 4s |
T301 | Network side | User side |
State | Call received | Call delivered |
Start | ALERT received. | ALERT received. |
Stop | CONNECT received | CONNECT received |
T302 | Network side | User side |
State | Overlap sending | Overlap receiving |
Start | SETUP-ACK sent, receipt of INFO, restarts T302 | SETUP-ACK sent. Restart when INFO received |
Stop | With sending complete indication, or network alert, or connect request received | INFO received with sending complete indication; or internal alerting; or internal connection; or a detemination that sufficient call information has been received |
T303 | Network side | User side |
State | Call present | Call initialized |
Start | SETUP sent | SETUP sent |
Stop | ALERT, CONN, CALL PROC or SETUP-ACK received; REL-COMP received if SETUP sent on point-to-point data link | ALERT, CONN, SETUP-ACK , CALL PROC, or REL-COMP received |
T304 | Network side | User side |
State | Overlap receiving | Overlap sending |
Start | SETUP-ACK received. Sending of INFO restarts T304 | INFO transmitted.
Restart when INFO re-transmitted |
Stop | Send INFO; receive CALL PROC, ALERT or CONN | CALL PROC, ALERT, CONN or DISC received |
T305 | Network side | User side |
State | Disconnect indication | Disconnect request |
Start | DISCONNECT without progress indicator N°8 sent | DISCONNECT sent |
Stop | REL or DISC received | REL or DISC received |
T306 | Network side | User side |
State | Disconnect indication | |
Start | DISCONNECT with progress indicator #8 sent | |
Stop | RELEASE with DISCONNECT received |
T307 | Network side | User side |
State | Null | |
Start | SUSP-ACK sent | |
Stop | RESUME received |
T308 | Network side | User side |
State | Release request | Release request |
Start | RELEASE sent | RELEASE sent |
Stop | RELEASE or REL-COMP received | RELEASE or REL-COMP received |
T309 | Network side | User side |
State | Any stable state | Any stable state |
Start | Data link disconnection . Calls in stable states are not lost | Data link disconnection . Calls in stable states are not lost |
Stop | Data link reconnected | Data link reconnected |
T310 | Network side | User side |
State | Incoming call proceeding | Outgoing call proceeding |
Start | CALL PROC received | CALL PROC received |
Stop | ALERT, CONN or DISCONNECT received.
If DISC, retain cause and continue timing |
ALERT, CONN, DISC or PROGRESS received |
T312 | Network side | User side |
State | Call present, call abort, etc. | |
Start | SETUP sent or resent on broadcast data link | |
Stop | Timeout |
T313 | Network side | User side |
State | Connect request | |
Start | CONN sent | |
Stop | CONN-ACK received |
T314 | Network side | User side |
State | Receiving segmented message | Receiving segmented message |
Start | Message segment received | Message segment received |
Stop | Last message segment received | Last message segment received |
T316 | Network side | User side |
State | Restart request | Restart request |
Start | RESTART sent | RESTART sent |
Stop | RESTART-ACK received | RESTART-ACK received |
T317 | Network side | User side |
State | Restart | Restart |
Start | RESTART received | RESTART received |
Stop | Internal clearing of call references | Internal clearing of call references |
T318 | Network side | User side |
State | Resume request | |
Start | RESUME sent | |
Stop | RESUME-ACK or RESUME REJECT received |
T319 | Network side | User side |
State | Suspend request | |
Start | SUSPEND sent | |
Stop | SUSPEND-ACK or SUSPEND-REJECT received |
T320 | Network side | User side |
State | B channel access active
D channel access null |
|
Start | B channel access: CONNECT sent or received
D channel access: DL-ESTABLISH-CONFIRM or DL-ESTABLISH-INDIC received |
|
Stop | Call request packet received; or Incoming call packet delivered; or
DISC received
for D-channel access DL-REL-IND received |
T321 | Network side | User side |
State | Any call state | Any call state |
Start | D-channel failure | D-channel failure |
Stop | Response to layer 3 message received | Response to layer 3 message received |
T322 | Network side | User side |
State | Any call state | Any call state |
Start | STAT ENQUIRY sent | STATUS ENQUIRY sent |
Stop | STATUS, DISC, REL or REL-COMP received | STATUS, DISC, REL or REL-COMP received |
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