[Asterisk-Users] Invalid sip contract

[lie ka]

HI, all
     I receive the message from asterisk cli likes below,I don't know what makes it.Can anybody help it.Thanks!!!
 
May 19 10:14:21 NOTICE[3799]: chan_sip.c:4814 parse_ok_contact: '' is
not a valid SIP contact (missing sip:) trying to use anyway
May 19 10:14:21 WARNING[3799]: chan_sip.c:4847 parse_ok_contact: Invalid
host ''
May 19 10:14:21 NOTICE[3799]: chan_sip.c:4814 parse_ok_contact: '' is
not a valid SIP contact (missing sip:) trying to use anyway
May 19 10:14:24 NOTICE[3799]: chan_sip.c:4814 parse_ok_contact: '' is
not a valid SIP contact (missing sip:) trying to use anyway

Best Regards
kalie




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