Thanks alot @ wasim baig @bipin sing Sorry for the delay as i dont get replies in my inbox i visited archives and come to know that i have answer to my querry. Well after 1 or 2 days i will have access to server then i will install libss7 as per suggested and let you know if i face any problem. thanks alot (indeed google is my best friend ;)) -- Best Regards Shakeel Abbas -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100208/3486b4bc/attachment.htm