Hi Mesbah, We have telco E1's connected to Telsis equipment. We have other ISDN connections between this Telsis and some other Asterisk servers to send/receive calls on VoIP interconnects. Now, we have configured 1 trunk on Telsis which is connected to this asterisk server as SS7. Asterisk is built with libSS7. I have already posted my asterisk configuration. We want to send calls from Telsis to Asterisk or vica-versa over this SS7 link. Configuration on Telsis trunk is: Signalling Scheme: SS7 ISUP Signalling Variant: White Book ISUP CRC4: Generate and detect CRC4 Location of trunk: Transit SS7 link configuration on Telsis is like: -Near-end point code is defined for this device. -Link is created with this trunk using timeslot 16. This link is allocated to a linkset on which we have defined adjacent point code (which is asterisk point code). -A Route Set is defined with settings: Far end PC = asterisk PC, CIC scheme = 32, linkset --- Kind Regards, Deepika Nijhawan VoIP Engineer Oxygen8 Communications T: +44(0) 871 434 9151 +44(0) 121 620 9151 Email: deepika.nijhawan at oxygen8.com Skype: deepika-nijhawan W: <http://www.oxygen8.com/> www.oxygen8.com This communication contains information which is confidential and may also be privileged. It is for the exclusive use of the intended recipient/s. If you are not the intended recipient/s please note that any distribution, copying or use of this communication or the information in it is strictly prohibited. If you have received this communication in error please notify us by email or by telephone (08082060808) and then delete the email and any copies of it. This communication is from Oxygen8 Communications UK Ltd - Company Number 03383285. Registered Address; 12th Floor, Lyndon House, 58-62 Hagley Road, Birmingham, B16 8PE. VAT Registration Number: 792 4494 89 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100518/2bb7e16d/attachment.htm