- This topic has 11 replies, 1 voice, and was last updated 17 years, 3 months ago by S.Vijay.
24th July 2004 at 15:01 #38726SalimGuest
What is screening mask? what are the benefits behind using it? any example..?
rgrds24th July 2004 at 21:19 #38727Daniel DongGuest
i don’t know too, some guys told me that it’s used for ISUP, you know ISUP is a powerful signalling protocal, but many functions have not beed used, screening mask uses to screen the unwanted signalling.
i am not sure above.28th July 2004 at 05:34 #38728DCGuest
Yes, screening mask is for ISUP. example is newly implemented optional protocols that AXE sends but other MSCs don’t understand. We use screening mask to blank out these parameters or to change the values to what other MSCs will understand so call is not rejected. See commands UPSM*29th July 2004 at 06:49 #38729S.VijayGuest
We can do Screening for Incoming messages to AXE.
This is to prevent some confusion from GARBAGE Messages /Parameters in AXE Call Processing.
Anyway DC Any Idea about SCCP Screening..in GT and SP Level ?
Rgds21st August 2004 at 01:00 #38730seymorebuttsGuest
does this correct/eliminate confusion messages sent by the MSC that cannot understand ?21st August 2004 at 12:15 #38731S.VijayGuest
Possible….23rd August 2004 at 09:21 #38732vinodGuest
Actually screening can help u mask or modify most of the o/g or i/c message.
I have implemented it to modify echo controller indicator. I have also tested the masking to modify the release code that is generated when call or call attemt drops.
I hope this will be of some help to you. But do we have screening in SCCP stack. If I am not wrong screening is feature of ISUP only.26th August 2004 at 12:29 #38733S.VijayGuest
Me too having the same question.
It seems there is some.
But not sure how ?
Rgds26th August 2004 at 14:14 #38734Vijay SharmaGuest
SCCP screening is possible and u can do on SSN, CLGPA, Protocol Class.
There are 1 or 2 more types also but used very rarely.
Regards,27th August 2004 at 18:11 #38735S.VijayGuest
In which Switching Systems ?
Rgds28th August 2004 at 19:47 #38736Vijay sharmaGuest
It is possible in Siemens D90029th August 2004 at 12:09 #38737S.VijayGuest
Yeah…I think in SIMENS They Can Do.
But not in MSC.
I think it is in SSNCP..I dont remember that name EXACTLY.But they have a separte SIGNALING PLATFORM.
Am I correct Mr.V Sharma.
Can you give me your mail id ?