Comments on: SMS in GSM Network http://learntelecom.com/telephony/gsm/sms-in-gsm-network Thu, 03 May 2012 12:28:56 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: dev http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-457 dev Thu, 03 May 2012 12:28:56 +0000 http://www.learntelecom.com/?p=74#comment-457 Hi Jules.. Can you please elaborate the same with the help of some traces..Also you are talking about the "their serving MSC send many times SMS to our SMSC with the number of SMSC as B Number" . Can you please tell which parameter (name of the param) you are seeing the B number in the traces... Hope will be able to answer you query after seeing some sample traces Hi Jules..
Can you please elaborate the same with the help of some traces..Also you are talking about the “their serving MSC send many times SMS to our SMSC with the number of SMSC as B Number” . Can you please tell which parameter (name of the param) you are seeing the B number in the traces…
Hope will be able to answer you query after seeing some sample traces

]]> By: Jules http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-452 Jules Tue, 03 Apr 2012 10:13:35 +0000 http://www.learntelecom.com/?p=74#comment-452 Hi all! I don't know if it's the right place to ask this question, but i'll do it. Got some traces from TAPIN file with the number of SMSC as BNumber;in other words,when our Outroamers in some countries try to send SMS, their serving MSC send many times SMS to our SMSC with the number of SMSC as BNumber. Is it a problem in the acknoledgment of the MAP-MO-FORWARD SHORTMESSAGE or a bad formating of their TAP files? Hi all!
I don’t know if it’s the right place to ask this question, but i’ll do it.
Got some traces from TAPIN file with the number of SMSC as BNumber;in other words,when our Outroamers in some countries try to send SMS, their serving MSC send many times SMS to our SMSC with the number of SMSC as BNumber.
Is it a problem in the acknoledgment of the MAP-MO-FORWARD SHORTMESSAGE or a bad formating of their TAP files?

]]> By: dev http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-451 dev Sat, 24 Mar 2012 22:56:47 +0000 http://www.learntelecom.com/?p=74#comment-451 Hi Fajarc, yes it is observed that the sccp calling pary addres is diffrent from the MAP-SM-RP-OA and the they are well aware whoever is doing that . This is being done for the sake of security. Its the ss7 layer stack which mey have the capablity to do so Hi Fajarc, yes it is observed that the sccp calling pary addres is diffrent from the MAP-SM-RP-OA and the they are well aware whoever is doing that . This is being done for the sake of security.

Its the ss7 layer stack which mey have the capablity to do so

]]> By: dev http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-445 dev Tue, 14 Feb 2012 11:42:15 +0000 http://www.learntelecom.com/?p=74#comment-445 I want to know that incase of Long sms P-P (Say 4 parts), 1st part of MO-FSM (1st MO-FSM) is submitted by H/S to the SMSC and then SMSC Sent the ACK of the 1st Part and then the H/S sends the second MO-FSM (2nd part) and it goes till the 4th part is submitted.Now I want to know, is that necessary that H/S shoudl not submit the second part (Mo-FSM) until the SMSC gives the ACK of the first part (MO-FSM resp?. Also incase By some methodology/tweaking If I can submit the second part before getting the ACK of the 1st MO-FSM, should SMSC handle this second MoFSM or should reject that. (Please let me know along with the sepcifcation description of GSM) I want to know that incase of Long sms P-P (Say 4 parts), 1st part of MO-FSM (1st MO-FSM) is submitted by H/S to the SMSC and then SMSC Sent the ACK of the 1st Part and then the H/S sends the second MO-FSM (2nd part) and it goes till the 4th part is submitted.Now I want to know, is that necessary that H/S shoudl not submit the second part (Mo-FSM) until the SMSC gives the ACK of the first part (MO-FSM resp?. Also incase By some methodology/tweaking If I can submit the second part before getting the ACK of the 1st MO-FSM, should SMSC handle this second MoFSM or should reject that. (Please let me know along with the sepcifcation description of GSM)

]]> By: fajarc http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-428 fajarc Mon, 28 Nov 2011 19:50:50 +0000 http://www.learntelecom.com/?p=74#comment-428 sorry, what I meant was: why, in reality, do we have such messages (valid SMS MT with having different GTs between SCCP Calling and MAP-SM-RP-OA)? what elements that change the SCCP Calling GT? do they know (the ones doing them) that they are doing faking? sorry, what I meant was: why, in reality, do we have such messages (valid SMS MT with having different GTs between SCCP Calling and MAP-SM-RP-OA)? what elements that change the SCCP Calling GT? do they know (the ones doing them) that they are doing faking?

]]> By: fajarc http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-427 fajarc Mon, 28 Nov 2011 18:21:20 +0000 http://www.learntelecom.com/?p=74#comment-427 Hello, I have a question about Faking SMS MT. It could happen from SMS MT that has SCCP Calling Party GT that is different than MAP SM-RP-OA (which is the SMSC address). What I have seen is that a lot of valid SMS MT has such combination, so that we can not just block them. My question is that why, in reality, do we have such question? Which elements change the SCCP Calling Party GT? Appreciate your response. Hello,

I have a question about Faking SMS MT. It could happen from SMS MT that has SCCP Calling Party GT that is different than MAP SM-RP-OA (which is the SMSC address). What I have seen is that a lot of valid SMS MT has such combination, so that we can not just block them. My question is that why, in reality, do we have such question? Which elements change the SCCP Calling Party GT?

Appreciate your response.

]]> By: Deepak Menghani http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-422 Deepak Menghani Thu, 03 Nov 2011 05:34:13 +0000 http://www.learntelecom.com/?p=74#comment-422 Hi, This is bcoz...IMSI is a unique identity...In GSM security, IMSI is encrypted to protect from interception from air-interfaces..., however MSISDN can be leaked very easily. Hi,

This is bcoz…IMSI is a unique identity…In GSM security, IMSI is encrypted to protect from interception from air-interfaces…, however MSISDN can be leaked very easily.

]]> By: Shri http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-421 Shri Wed, 02 Nov 2011 14:10:26 +0000 http://www.learntelecom.com/?p=74#comment-421 Your query has been answered here: http://learntelecom.com/groups/gsm-call-flows/forum/topic/sms-in-3g-roaming/?#post-58 Your query has been answered here:

http://learntelecom.com/groups/gsm-call-flows/forum/topic/sms-in-3g-roaming/?#post-58

]]> By: Shri http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-420 Shri Wed, 02 Nov 2011 14:05:36 +0000 http://www.learntelecom.com/?p=74#comment-420 Your query has been answered here: http://learntelecom.com/groups/gsm-call-flows/forum/topic/sms-in-3g/?#post-56 Your query has been answered here:

http://learntelecom.com/groups/gsm-call-flows/forum/topic/sms-in-3g/?#post-56

]]> By: Shri http://learntelecom.com/telephony/gsm/sms-in-gsm-network#comment-419 Shri Wed, 02 Nov 2011 14:01:25 +0000 http://www.learntelecom.com/?p=74#comment-419 Your query has been answered here: http://learntelecom.com/groups/gsm-call-flows/forum/topic/alert-service-centre/?#post-54 Your query has been answered here:

http://learntelecom.com/groups/gsm-call-flows/forum/topic/alert-service-centre/?#post-54

]]>