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hi... i need your expertise...

below is an SS7 trace captured where the MSC is sending an abort message... what is causing this abort?

Transaction Capabilities Application Part
Destination Transaction ID
Transaction Id: 0817184d
reason: u-abortCause (11)
oid: (id-as-dialogue)
abort-source: dialogue-service-user (0)
user-information: 1 item
user-information item
direct-reference: (map-DialogueAS)
encoding: single-ASN1-type (0)
MAP-DialoguePDU: map-userAbort (4)
map-UserAbortChoice: userSpecificReason (0)

asked 01 Oct '12, 05:40

sau2k122's gravatar image

accept rate: 0%

edited 01 Oct '12, 08:11

Jaap's gravatar image

Jaap ♦

Dear Sir,

i also have the same issue kindly please help me.

i am testing a USSD conversation, while i am in the responding to the USSD from Mobile handset my transaction abourt.


handset: *303# USSD: please enter your facebook ID handset: during typing the facebook ID after 45 secound the transaction disconnecting.

our USSD team has set this priod to 2 minutes. i want to know which platform abourt the trasaction.


MSC send message as your snapshoot above and as i took GSM trace on MSC it showing Radio Interface Failur.

in this piont i couldn't prove that problem is where while BSS is doing nating with timer.

i am looking for your comment.


Hafizullah Afghanistan (AWCC) company

(24 Jun '13, 23:53) Hafiz

what is causing this abort?

Well.... how are we supposed to tell with only the abort message?

Can you post the whole conversation in pcap format (


permanent link

answered 08 Oct '12, 12:17

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
accept rate: 15%

(08 Oct '12, 12:36) sau2k122

There is no information about the abort reason in the posted capture file. Do you see any frame with "MAP-NOTICE" in the full capture file?

(08 Oct '12, 12:56) Kurt Knochner ♦
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question asked: 01 Oct '12, 05:40

question was seen: 10,881 times

last updated: 25 Jun '13, 01:52

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