Ring delay on set on Isdn T2 trunk group

[Konstantinos.E]

Hello Guys ,

I having a strange issue .

OXE r10.0 latest release

The symptom is when an incoming call arrives to isdn t2 trunk group the call rings to the set after a delay .
The caller hears ringing tone (4 rings around 12-15 sec) and then call starts to ring on the set .

On the t3 trace oxe sent ACK to provider immeidiately and after this delay oxe sents again progress and alert.

Seems this delay prevents to make the ddi transcoding to the oxe immeidiately .
The ddi translator sents the call directly to the set. no guides or other routing to reach the set.

Any timer or setting on oxe is capable to make this delay?
Why the oxe sents SETUP ACK instead of CALL PROC


(1)eka> t3
--> Cleaning mtracer...
--> Positionning t3 filters...
+--------+-------+--------+--------+---------+---------+----------+------+
| filter | desti | src_id | cr_nbr | cpl_nbr | us_term | term_nbr | type |
+--------+-------+--------+--------+---------+---------+----------+------+
| 0 | ** | ** | * | ** | * | *** | 165 |
| 1 | ** | ** | * | ** | * | *** | 166 |
| 2 | ** | ** | * | ** | * | *** | 167 |
| 3 | | | | | | | |
| 4 | | | | | | | |
| 5 | | | | | | | |
| 6 | | | | | | | |
| 7 | | | | | | | |
+--------+-------+--------+--------+---------+---------+----------+------+
Traces Analyser activated

mtracer started ...
(597989:000001) MTRACER host (192.168.1.246, eka), version: R10.0-j1.410-63-b-gr-c7s2
(597989:000001) MTRACER num: 018, time: 2023/06/27 10:33:50, loss: 0%
______________________________________________________________________________
| (598102:000002) Concatenated-Physical-Event :
| long: 59 desti: 2 source: 0 cryst: 0 cpl: 12 us: 0 term: 0 type a5
| tei: 0 >>>> message received : SETUP [05] Call ref : 00 0b
|______________________________________________________________________________
|
| IE:[04] BEARER_CAPABILITY (l=3) 90 90 a3
| IE:[18] CHANNEL (l=3) a9 83 82 -> T2 : B channel 2 exclusive
| IE:[1e] PROGRESS_ID (l=2) 81 83
| IE:[6c] CALLING_NUMBER (l=12) -> 00 81 Num : xxxxxx
| IE:[70] CALLED_NUMBER (l=11) -> 80 Num : xxxxxx
|______________________________________________________________________________

______________________________________________________________________________
| (598102:000003) 1481: Send_IO1 (link-nbr=12, sapi=0, tei=0) :
| long: 23 desti: 0 source: 15 cryst: 0 cpl: 12 us: 8 term: 0 type a5
| tei: 0 <<<< message sent : SETUP ACK [0d] Call ref : 80 0b
|______________________________________________________________________________
|
| IE:[18] CHANNEL (l=3) a9 83 82 -> T2 : B channel 2 exclusive
|______________________________________________________________________________



4 rings pause





______________________________________________________________________________
| (598251:000004) 1481: Send_IO1 (link-nbr=12, sapi=0, tei=0) :
| long: 18 desti: 0 source: 15 cryst: 0 cpl: 12 us: 8 term: 0 type a5
| tei: 0 <<<< message sent : CALL PROC (02) Call ref : 80 0b
|______________________________________________________________________________

______________________________________________________________________________
| (598251:000005) 1481: Send_IO1 (link-nbr=12, sapi=0, tei=0) :
| long: 22 desti: 0 source: 15 cryst: 0 cpl: 12 us: 8 term: 0 type a5
| tei: 0 <<<< message sent : ALERT (01) Call ref : 80 0b
|______________________________________________________________________________
|
| IE:[1e] PROGRESS_ID (l=2) 81 88
|______________________________________________________________________________


Alert on set



______________________________________________________________________________
| (598280:000006) Concatenated-Physical-Event :
| long: 22 desti: 2 source: 0 cryst: 0 cpl: 12 us: 0 term: 0 type a5
| tei: 0 >>>> message received : RELEASE [4d] Call ref : 00 0b
|______________________________________________________________________________
|
| IE:[08] CAUSE (l=2) 81 90 -> [90] NORMAL CALL CLEARING
|______________________________________________________________________________

______________________________________________________________________________
| (598280:000007) 1481: Send_IO1 (link-nbr=12, sapi=0, tei=0) :
| long: 22 desti: 0 source: 15 cryst: 0 cpl: 12 us: 8 term: 0 type a5
| tei: 0 <<<< message sent : REL COMP [5a] Call ref : 80 0b
|______________________________________________________________________________
|
| IE:[08] CAUSE (l=2) 81 90 -> [90] NORMAL CALL CLEARING


|______________________________________________________________________________





lqReview/Modify: Trunk COSqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x x
x Node Number (reserved) : 101 x
x Instance (reserved) : 1 x
x Trunk COS : 19 x
x x
x Connection COS : 5 x
x Trunk Type + ISDN x
x Signaling Type + Not Relevant x
x Waiting Guide + True x
x Overflow Timer on No Answer : 3000 x
x Overflow Timer on Waiting : 3000 x
x x
x T2 T0 ABC-F ISDN Trunks x
x x
x Timer T303 : 40 x
x Timer T304 : 300 x
x Timer T310 : 410 x
x Timer T313 : 40 x
x Timer T305 : 300 x
x Timer T308 : 40 x
x Timer T309 : 900 x
x Timer T302 : 150 x
x Timer T386 : 200 x
x x
x ISDN trunks x
x x
x Timer T301 : 1800 x
x Timer T306 : 300 x
x Timer T316 : 1200 x
x Timer T317 : 1200 x
x Timer T322 : 40 x
x x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

[Konstantinos.E]

found the solution.

Carrier doesnt sent sending complete EI .