MDL/TEI is pretty low level. Which card are you using?
chan_dahdi.conf? Card config? PCAP trace? Q.931 and Q.921 messages are relatively easy to debug with wireshark. jg -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
