hi everybody. i use pjsip to send fax, i test my code in diffirent enviroment. when i send fax over ethernet hub ,it works OK. but when i send fax over router ,it cause error. and i noticed that : 06:27:09.395 pjsua_app.c Call 0 is DISCONNECTED [reason=408 (Request Timeout)] the next log is: 06:27:11.571 pjsua_core.c RX 319 bytes Request msg ACK/cseq=653859760 (rdata0x148a00) from tcp 192.168.3.77:44836: it may be that: the receiver recived request msg after call disconnect . so how to adjust the request time ? thanks -- zhang.zhilong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081114/f4fe514a/attachment.html>