Extended Formats
Call redirection
Multiline
Facility Length Field
This indicates the length of facility field in bytes.
Level 3 facilities
per-call facility fields
0 1 0 0 0 0 1 0 | 42 | packet size |
0 1 0 0 0 0 1 1 | 43 | window size |
0 0 0 0 0 0 1 0 | 02 | throughput class negotiation |
0 0 0 0 0 0 1 1 | 03 | closed user group - basic format |
0 1 0 0 0 1 1 1 | 47 | closed user group - extended format |
0 0 0 0 1 0 0 1 | 09 | closed user group - with O/G access |
0 1 0 0 1 0 0 0 | 48 | closed user group - extended +O/G |
0 1 0 0 0 0 0 1 | 41 | closed user group - bilateral |
0 0 0 0 0 0 0 1 | 01 | reverse charging/fast select |
1 1 0 0 0 1 1 0 | C6 | Network user Identification |
0 0 0 0 0 1 0 0 | 04 | Charging Information - requesting service |
1 1 0 0 0 1 0 1 | C5 | Charging Information - monetary unit |
1 1 0 0 0 0 1 0 | C2 | Charging Information - segment count |
1 1 0 0 0 0 0 1 | C1 | Charging Information - call duration |
0 1 0 0 0 1 0 0 | 44 | RPOA selection - basic format |
1 1 0 0 0 1 0 0 | C4 | RPOA selection - extended format |
0 0 0 0 1 0 0 0 | 08 | Called line address modified |
1 1 0 0 0 0 1 1 | C3 | Call Redirection Notification |
0 1 0 0 1 0 0 1 | 49 | Transit delay selection and indication |
v v | ||
0 0 single byte parameter field | ||
0 1 double byte parameter field | ||
1 0 triple byte parameter field | ||
1 1 variable length parameter field | ||
DTE facilities (1984) | ||
1 1 0 0 1 0 1 1 | CB | Calling address extension |
1 1 0 0 1 0 0 1 | C9 | Called address extension |
0 0 0 0 1 0 1 0 | 0A | Minimum Throughput Class Negotiation |
1 1 0 0 1 0 1 0 | CA | end-to-end transit delay |
0 0 0 0 1 0 1 1 | 0B | Expedited data negotiation |
Some facilities (eg reverse charging) are required on a per call basis:
byte 1 2 3 | type | Call Request | Incoming Call | Call Accepted (fast select) | Call Connected (fast select) |
00 00 - | National options marker (calling network) | Y | Y | Y | Y |
00 FF - | " " " (called network) | Y | Y | Y | Y |
01 00 - | no reverse charging | Y | EF | N | N |
01 01 - | reverse charging | Y | option | N | N |
01 C0 - | fast select (restricted response) | EF | EF | N | N |
01 80 - | fast select (unrestricted response) | EF | EF | N | N |
01 C1 - | reverse charging and fast select (restricted response) | EF | EF | N | N |
01 81 - | reverse charging and fast select (unrestricted response) | EF | EF | N | N |
02 xx | Throughput (not Public Network) | ||||
03 xx - | Closed user group | option | option | option | option |
43 0x 0x | Window size | EF | EF | EF | EF |
42 0x 0x | Packet size | EF | EF | EF | EF |
44 ROPA selection (not Public Network) | |||||
C1 04 xxxx | call duration | N | N | option | option |
C2 08 xxxxxxxx | segment count | N | N | option | option |
Public Network Facilities
byte | subscription | type |
1 2 3 | or per call | |
00 00 - | - | National options marker (calling network) |
00 FF - | - | " " " (called network) |
01 00 - | no reverse charging or call accept | |
01 01 - | og - per call | reverse charging |
ic - subscription | ||
01 C0 - | subscription | fast select (restricted response) |
01 80 - | (includes extended | fast select (unrestricted response) |
01 C1 - | format) | reverse charging and fast select (restricted response) |
01 81 - | reverse charging and fast select (unrestricted response) | |
02 xx - | not Public Network | Throughput |
03 xx - | Closed user group | |
43 0x 0x | requires extended format | Window size |
42 0x | requires extended format | Packet size |
44 | not Public Network | RPOA selection |
C1 04 xxxx | call duration | |
C2 08 xxxxxxxx | segment count |
Some facilities (eg reverse charging) are required on a per call basis:
byte
1 2 3 |
type | Call Request | Incoming Call | Call Accepted fast select | Call Connected fast select |
00 00 | National options marker (calling network) | Y | Y | Y | Y |
00 FF | " " " (called network) | Y | Y | Y | Y |
01 00 | no reverse charging | Y | EF | N | N |
01 01 | reverse charging | Y | option | N | N |
01 C0 | fast select (restricted response) | EF | EF | N | N |
01 80 | fast select (unrestricted response) | EF | EF | N | N |
01 C1 | reverse charging and fast select (restricted response) | EF | EF | N | N |
01 81 | reverse charging and fast select(unrestricted response) | EF | EF | N | N |
02 xx | Throughput (not Public Network) | ||||
03 xx | Closed user group | option | option | option | option |
43 0x 0x | Window size | EF | EF | EF | EF |
42 0x 0x | Packet size | EF | EF | EF | EF |
44 | ROPA selection (not Public Network) | ||||
C1 04 xxxx | call duration | N | N | option | option |
C2 08 xxxxxxxx | segment count | N | N | option | option |
byte subscription type
1 2 3 or per call
-- -- -- ------------ ----
00 00 - - National options marker (calling network)
00 FF - - " " " (called network)
01 00 - no reverse charging or call accept
01 01 - og - per call reverse charging
ic - subscription
01 C0 - subscription fast select (restricted response)
01 80 - (includes extended fast select (unrestricted response)
01 C1 - format) reverse charging and fast select (restricted response)
01 81 - reverse charging and fast select (unrestricted response)
02 xx - not Public Network Throughput
03 xx - Closed user group
43 0x 0x requires extended Window size
format
42 0x requires extended Packet size
format
44 not Public Network RPOA selection
C1 04 xxxx call duration
C2 08 xxxxxxxx segment count
non-ext format to non-ext format
non-ext format non-ext format
DTE DCE DCE DTE
-- CALL REQ -? call cannot contain packet or
p=256 w=7 window size facilities.
if it does it will be cleared
?- CLEAR 0341 - by the network 0341
-- CALL REQ -? -- INC CALL -? incoming call will have calling
and called addresses.
?- CALL CON -- ?- CALL ACC -- call acc cannot contain packet
or window size or addresses
only the default packet & window of 128 and 2 will be used.
11.10 non-ext format to ext format
non-ext format ext format
DTE DCE DCE DTE
-- CALL REQ -? -- INC CALL -? call cannot contain packet or
window size facilities.
if it does it will be cleared
by the network 0341
incoming call will have default
packet and window size plus
calling and called addresses
?- CALL CON -- ?- CALL ACC -- call acc packet/window facility
and addresses optional
if included facilities must be
default.
call con contains no facilities
or addresses.
11.11 ext format to non-ext format
ext format non-ext format
DTE DCE DCE DTE
-- CALL REQ -? -- INC CALL -? if call contains packet or
p=256 w=7 p=128 w=2 window size facilities they
will be negotiated down by the
network.
incoming call will have default
packet and window size plus
calling and called addresses
?- CALL CON -- ?- CALL ACC -- call acc packet/window facility
p=128 w=2 and addresses optional
if included facilities must be
default.
call con contains no facilities
or addresses.
11.12 ext format to ext format
ext format ext format
DTE DCE DCE DTE
-- CALL REQ -? -- INC CALL -? call can contain packet/window
size facilities.
?- CALL CON -- ?- CALL ACC -- call acc packet/window facility
and addresses optional (length field must be included) if included facilities
can only be packet and window size and must negotiate toward default.
FACILITIES VIA International Public Network