Hi, You'd need INAP to implement this, configuring the exchange (SSP/"central") to at a trigger detection point (TDP) perform an IN query to your node, which would act as an SCP, do the lookup, and return with a "Connect" instruction with the new number to the SSP. Asterisk only supports ISUP, not INAP, and therefore you cannot do this. You would be able to do it if you left Asterisk in the media path, in other words making the call to the translated number, and bridging the two legs, but I understand you don't want to do this. For small networks it might be viable, though. Cheers, Charl From: asterisk-ss7-bounces@xxxxxxxxxxxxxxxx [mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Virmones Pereira Sent: 02 September 2008 08:58 To: asterisk-ss7 at lists.digium.com Subject: Asterisk SS7 as a STP for Number Portability GW Hi, I would like to use asterisk with SS7 as a STP for Number Portability GW, the idea of the system is follow: When the SS7 central(Ericsson AXE) receive the call this should be route to the Asterisk to trigger the number portability database by SS7/ISUP method if the asterisk found this destination number in the number portability database asterisk will insert the Routing Number in the begin of the called number and then route back this call to the SS7 central. Ex: user dial 551132323232 this call go the asterisk and asterisk turn back with 55112551132323232. I wanna do this operation using asterisk as a STP where the SS7 use only the signaling channel, the media should go directly to the SSP somebody knows how to do it? _____ ( ) ( DB ) ( ) (_____) /|\ | ___\|/_____ | ASTERISK | |___________| /|\ | | | 55121 1132323232 551132323232 | | ___|___\|/___ _________ ___ 551132323232 | | 55121 1132323232 | | /_\---------------------------->| SS7 Central |-------------------->| SSP | | | | | |_____________| |_________| -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20080902/253382a4/attachment-0001.htm