-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, a further update: The code is implemented and seems to work as it should. I still can do outgoing calls when q931ToPcap is active :) So it shouldn't be too wrong what I did in the openzap code. The pcap File is generated in FS's log dir either with default filename or with optional given filename. Existing files of same name will be overwritten without a warning. I attached a screenshot of such a pcap file viewed in wireshark. Currently I work on a little linux cli perl script, which displays the decoded Q931 packets on a CLI as showed in my yesterday mail. One thing I couldn't solve is, how to get the span_id when FS receives or send a Q931 packet? In ozmod_isdn functions "static int zap_isdn_921_23" (Receive) and "static int q931_rx_32" (Send) I'm converting *pvt to zap_span_t like this: zap_span_t *span = (zap_span_t *) pvt; Then I try to access span_id by span->span_id, but it seems it's allways zero. Any ideas? regards helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) iEYEARECAAYFAkmBiugACgkQ4tZeNddg3dwQ+QCfTzb3Notfkx0NlLqXd6xHeE1J UYYAn1uzMBoFvUTB1uMK0wdD1IMnS3tX =p/F4 -----END PGP SIGNATURE-----