Hi I am working in a big telecom operator. we have huge amount of ISUP trunks but in some exchanges we don't have enough PRI? Es . I have an ideas for solving this problem in lowest price as below : There should be a special signaling convertor like this: this converter receives 2 SS7 signaling channels from telecom switch and convert it to 120 D_channet(PRI) on same TE410 board then inside Telecom switch with configuring "semi permanent connection" every D_channel will map to channel 16 of E1s that supposed to work as PRIs so 120 D_channel will map to channel 16 of 120 E1s( from telecom switch point of view this E1s are SS7 trunks ). by this method with using just 4 E1 ports we can convert 120 ISUP E1 to PRI and sell them. signal convertor box <<--2 ss7 channel---Telecom switch -----120 PRI---->ISPs,PABXs signal convertor box --120 D_channel-->>Telecom switch ........''.........''............." ????????? I want to know is doing this method is possible with Asterisk+ libss7+libpri without modifying source cods ? If need modifying source code is it easy or need deep understanding of source codes ? what is your suggestion is it practical idea at all or not ? ?? Regards M.Shirazi -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20081212/b1538e0e/attachment.htm