E1 card for SS7

[thanhnt@xxxxxxxxxxx (Nguyen Trung Thanh)]

Dear all,


I have used IP-PBX based asterisk for some year. Now, I want to upgrade from C0 (4line) to E1 card. Plz let me know the below issues according to SS7/R2:

- The architecture;
- The hardware;
- The module/software needed.


Tks & Rgds
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