Hello list, i have a strange problem iam using the ulaw,alaw and g729 codecs in sip.conf i have like this [general] disallow=all disallow=g723 allow=g729 allow=alaw allow=ulaw even though i am disabling the g723 any UA could able to connect to the system and then suddenly asterisk stops working gives segmentation fault and closing the process. in logs i have this messages Feb 26 16:14:51 WARNING[1076266144]: Cannot disallow unknown format 'g723' Feb 26 16:14:51 WARNING[1076266144]: Cannot disallow unknown format 'g723' Feb 26 16:14:51 WARNING[1076266144]: Cannot disallow unknown format 'g723' Feb 26 16:14:52 WARNING[1076266144]: Unable to open IAX timing interface: No such device Feb 26 16:14:52 WARNING[1076266144]: Unable to get our IP address, Skinny disabled Feb 26 16:14:52 WARNING[1076266144]: Unable to open /dev/dsp: Device or resource busy Feb 26 16:14:52 WARNING[1076266144]: No '=' (equal sign) in line 45 of extensions.conf Feb 26 16:14:52 WARNING[1076266144]: Unable to register extension '_X.', priority 1 in 'local-phones', already in use Feb 26 16:14:52 WARNING[1076266144]: Unable to register extension at line 33 so what may be the hurdle if at all i donot want the g723 at all what do i need to for that your views will be highly regarded with regards niranjan __________________________________ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250