Dear all, I'm experimenting with libss7 and asterisk to do a fail-over configuration. I've 2 Asterisk Boxes, connected back-to-back with 4 E1s. 2 E1s are configured as linkset - 1 with 2 links in it. Other 2E1s are configured as linkset - 2 with 2 links in it. Both linkset has different OPC and DPC. Please see the below for the configuration. Asterisk - A: group=1 context=from-internal signalling=ss7 ;this is ss7 signalling ss7type=itu ;using the ITU variant ss7_called_nai=dynamic ;NAI for outgoing calls ss7_calling_nai=dynamic ;NAI for incoming calls ss7_internationalprefix=00 ;internation prefix value for incoming calls ss7_nationalprefix=0 ;national prefix value for incoming calls ss7_subscriberprefix= ;subscriber prefix value for incoming calls ss7_unknownprefix= ;unknown prefix value for incoming calls ss7_explictacm=yes ;ACM is send as soon as call enters the dialplan...may not accepted yet though linkset=1 ;arbitary name for this set of channels pointcode=1 ;the point code for this system...aka SPC adjpointcode=2 ;the point code for the system that we are signalling to... aka APC defaultdpc=2 ;the point code for the system that the CICs will be negoiated with...aka DPC networkindicator=international ;NI value for MTP3 cicbeginswith=1 ;the starting value of the CICs channel=>1-15 cicbeginswith=17 channel=>17-31 cicbeginswith=32 channel =>32-46 cicbeginswith=48 channel=>48-62 slc=0 sigchan=16 slc=1 sigchan=47 ;the signalling channel linkset=2 ;arbitary name for this set of channels pointcode=3 ;the point code for this system...aka SPC adjpointcode=4 ;the point code for the system that we are signalling to... aka APC defaultdpc=4 ;the point code for the system that the CICs will be negoiated with...aka DPC networkindicator=international ;NI value for MTP3 cicbeginswith=63 ;the starting value of the CICs channel =>63-77 cicbeginswith=79 channel =>79-93 cicbeginswith=94 channel =>94-108 cicbeginswith=110 channel=>110-124 slc=0 sigchan=78 slc=1 sigchan=109 ;the signalling channel Asterisk - B group=1 context=from-internal signalling=ss7 ;this is ss7 signalling ss7type=itu ;using the ITU variant ss7_called_nai=dynamic ;NAI for outgoing calls ss7_calling_nai=dynamic ;NAI for incoming calls ss7_internationalprefix=00 ;internation prefix value for incoming calls ss7_nationalprefix=0 ;national prefix value for incoming calls ss7_subscriberprefix= ;subscriber prefix value for incoming calls ss7_unknownprefix= ;unknown prefix value for incoming calls ss7_explictacm=yes ;ACM is send as soon as call enters the dialplan...may not accepted yet though linkset=1 ;arbitary name for this set of channels pointcode=2 ;the point code for this system...aka SPC adjpointcode=1 ;the point code for the system that we are signalling to... aka APC defaultdpc=1 ;the point code for the system that the CICs will be negoiated with...aka DPC networkindicator=international ;NI value for MTP3 cicbeginswith=1 ;the starting value of the CICs channel=>1-15 cicbeginswith=17 ;the starting value of the CICs channel=>17-31 cicbeginswith=32 channel=>32-46 cicbeginswith=48 channel=>48-62 slc=0 sigchan=16 slc=1 sigchan=47 ;the signalling channel linkset=2 ;arbitary name for this set of channels pointcode=4 ;the point code for this system...aka SPC adjpointcode=3 ;the point code for the system that we are signalling to... aka APC defaultdpc=3 ;the point code for the system that the CICs will be negoiated with...aka DPC networkindicator=international ;NI value for MTP3 cicbeginswith=63 ;the starting value of the CICs channel =>63-77 cicbeginswith=79 channel=>79-93 cicbeginswith=94 channel=>94-108 cicbeginswith=110 channel=>110-124 slc=0 sigchan=78 slc=1 sigchan=109 When everything is normal and I make a call, the call go through via the linkset 1. Then I removed the Physical cable of 1st and 2nd E1, now the call goes via linkset 2. So I assume that it works as expected. My doubt is I've read post in this mailing-list saying Libss7 cannot support multiple point code or you need special configurations with multiple asterisk running etc... But it looks like it has worked for me, or am I missing something ??? Please en-light...
|