[asterisk-users] WARNING[31046]: chan_sip.c:4978 process_sdp: Unable to lookup host in c= line, 'IN IP4 100101'

[Andrew Joakimsen]

Well can  you offer some explanation why T.38 faxing worked for months
and then one day stopped working?

Using both Linksys & Audiocodes (yuck) ATA. The first second of the
fax tone is heard and then the T.38 switchover is attempted and the
call drops with said error.



On Jan 15, 2008 6:25 PM, Mark Michelson <mmichelson at digium.com> wrote:
>
> Andrew Joakimsen wrote:
> > Anyone else have issues with T.38 where the call drops after T.38 is
> > attempted to be negotiated, with a message like the below?
> >
> >  WARNING[31046]: chan_sip.c:4978 process_sdp: Unable to lookup host in
> > c= line, 'IN IP4 100101'
>
> The problem is that 100101 is neither a valid IPv4 address nor a fully-qualified
> domain name.
>
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