On Sun, Oct 6, 2013 at 9:32 PM, Andrew Pogrebennyk <[email protected]
> wrote:

> Hello,
> I have an error when using the JsSIP library which uses the Firefox
> PeerConnection implementation, under Firefox 24 / Linux:
>
> Could not negotiate answer SDP; cause = NO_MEDIA | SDP Parsing Error:
> Warning: Unrecognized attribute (ice-lite)  | SDP Parsing Error:
> Warning: No network type specified in comediadir attribute. | SDP
> Parsing Error:  Warning: No network type specified in comediadir
> attribute. | SDP Parsing Error:  Warning: Unrecognized attribute
> (oldmediaip)
>
> Here is the SDP answer:
> v=0
> o=sipwise-user2 0 0 IN IP4 192.168.51.132
> s=-
> c=IN IP4 192.168.51.132
> t=0 0
> a=ice-lite
> m=audio 30166 RTP/SAVP 0 8 101
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=direction:active
> a=rtcp:30167
> a=crypto:0 AES_CM_128_HMAC_SHA1_80
> inline:06D1X6PnZNHRH78fDPqtp3UctHD3tkxLmPa18a2h
> a=ice-ufrag:r2KOSpzi
> a=ice-pwd:O2JCu9UPbTD7JAvXWslJddFFfnr5
> a=candidate:iN6TH63Epu7ta86x 1 UDP 2130706432 192.168.51.132 30166 typ host
> a=candidate:iN6TH63Epu7ta86x 2 UDP 2130706431 192.168.51.132 30167 typ host
> m=video 0 RTP/SAVP 120
> a=direction:active
> a=oldmediaip:10.10.8.35
> a=inactive
>
> I don't see anything badly wrong with it.. The attributes oldmediaip,
> ice-lite, inactive etc should be ignored if they're not supported.
>  The full log is available at http://pastebin.com/raw.php?i=9ngM28Ux


Those are just warnings.

The first real problem I see is that there are no fingerprint
lines for DTLS-SRTP, so we won't be able to actually negotiate.
a connetion. This may or may not be the error you are seeing, but it will
be enough to cause failure.

-Ekr





> Has anyone else seen this problem, has an insight or maybe some general
> pointers? Thanks in advance.
> P.S. If you think I should fill an issue in your bugtracker I will.
>
> Andrew
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> [email protected]
> https://lists.mozilla.org/listinfo/dev-media
>
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