Telecommunications - Configuration of X.25 deflection notification (CRN)

Per-call facility options - Call redirection or call

deflection notification (CRN)

Description of Facility

Used to notify called party that the call has been redirected/deflected.

--------------------------------------------------------------------------

Facility Parameter reason length address of previously
code length for in called DTE
+-------------------------
C3 hex redirection semi-octets MSB BCD ... LSD BCD

--------------------------------------------------------------------------

_

|

01 originally called DTE busy

07 call distribution within a hunt group

09 originally called DTE out of order

0F systematic call redirection

C0-FF call deflection
3

| C3 | 11000011 | Call redirection notification............#

+--------------------------------------------------------------------------------------------+

| X.2 LEVEL 3 PER CALL FACILITY | X.2 (1984) | UK(a) | UK(b) |interworking|

| OPTIONS | REF CLASS | now | now |R5a|R5b| R6 | |

+-------------------------------------+-------------+--------+-----+---+---+----+------------|

| Call redirection notification.......| 2.11 A | . | . | . |

|

| |

+--------------------------------------------------------------------------------------------+

&UKa& = yUKa support

Yes - new to release 4

&UKb& = yUKb support

X.25: NO - planned for future release

CCITT compatibility

X.2 1984 ... A - additional facility

X.2 1988 ... A - additional facility

ISO 8878 compatibility

ONA compatibility

RD 0004 part 8:1.C (PICS proforma Public Network1984)

FR11 - Call redirection Notification ................O = Optional

Therefore release 4 is compatible with ONA for this option.

Test plan and implementation issues

we need to try all combinations of -

hunt group

CRN

CLAMN

enhanced DTE

call originator 1980

call receiver 1980

+ all facility options that could be generated by either end

+ mixing with other options such as redirect


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