Dear Matthew, We detected 2 problems we tried to work around: 1) We were getting echo on SS7 calls (no matter the echo-canceler we configured). I detected echo canceler was not activated during call setup. 2) Connecting same linkset to more than one DPC (different E1s), when replying SS7 messages addressed to a CIC associated to one DPC, the answer message included wrong PC address. Attached my libss7 patches and chan_zap. These patches are running last 3 weeks with no problem. Please validate them. PS: sorry about my "DB" remarks but this helps me to keep track on changes. I will remove it upon your validation. []'s Daniel -------------- next part -------------- A non-text attachment was scrubbed... Name: chan_zap-fixOPC-fixEcho.patch Type: text/x-patch Size: 7343 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-ss7/attachments/20080116/a3df28e9/attachment.bin -------------- next part -------------- A non-text attachment was scrubbed... Name: isup-fixOPC.patch Type: text/x-patch Size: 3596 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-ss7/attachments/20080116/a3df28e9/attachment-0001.bin -------------- next part -------------- A non-text attachment was scrubbed... Name: libss7H-fixOPC.patch Type: text/x-patch Size: 1777 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-ss7/attachments/20080116/a3df28e9/attachment-0002.bin