[asterisk-ss7] Asterisk SS7 as a STP for Number Portability GW

[Charl Barnard]

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 at lists.digium.com
[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] 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   |
                                      |             |                     |
| 
                                      |_____________|
|_________| 


    











 

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