Per-call facility options - Called line address Modified Notification (CLAMN)
Description of Facility
The purpose of the CLAMN is to notify the calling DTE why the called DTE address
is different than the one specified in the call request packet
Facility code | Parameter field |
08 hex |
0F | call redirection due to prior request from the |
originally called DTE for systematic call redirection | |
09 | call redirection due to originally called DTE |
out of order | |
01 | call redirection due to originally called DTE busy |
8x | DTE originated (1xxxxxxx) |
07 | call distribution within a hunt group |
| 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
&UKb& = yUKb support
X.25: Partially Supported
The UKb X.25 interface does not currently generate the CLAMN facility to inform a calling DTE of a modified called address
RD 0004 part 8:1.C (PICS proforma Public Network1984)
FR10 - Called Line Address Modified Notification.... O = Optional
Therefore release 4 is compatible with ONA for this option.
Test plan and implementation issues
Customers may now be given additional option of CLAMN and CRN subscription.
Another tricky one to test - we need to try all combinations of -
call redirection 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 hunt group