[Freeswitch-users] Eavesdrop results in rewriting RTP sequence numbers on a bridge.

Anthony Minessale anthony.minessale at gmail.com
Thu Sep 12 16:58:44 MSD 2013


Seq numbers never are preserved. Again dobtou mean timestamps?
On Sep 12, 2013 7:31 AM, "Richard Brady" <rnbrady at gmail.com> wrote:

> Thanks.
>
> I'm not talking about the new stream for the eavesdrop. I'm talking about
> the streams on the A and B legs of the bridge.
>
> I don't see why FS would rewrite sequence numbers on an RTP stream which
> it is simply bridging (no transcoding, no muxing, etc). Sequence numbers
> allow packet loss to be detected and compensated for. If FS is not running
> a JB or PLC then it should leave discontinuous sequence numbers as is so
> that a downstream JB / PLC can use them.
>
> I'll send some Wireshark screenshots shortly. And will double check re seq
> num vs timestamps.
>
> On 11 September 2013 20:19, Anthony Minessale <anthony.minessale at gmail.com
> > wrote:
>
>> Seq numbers are always rewritten.  Maybe you mean timestamps?
>> The muxing and recreation of a new media stream requires a newly
>> generated stream.  There is not a way around that.
>>
>>
>>
>> On Wed, Sep 11, 2013 at 9:29 AM, Richard Brady <rnbrady at gmail.com> wrote:
>>
>>> Hi guys
>>>
>>> Seems than running eavesdrop (and potentially other media bugs) on a
>>> bridged channel results in the rewriting of sequence numbers on RTP
>>> streams, potentially hiding packet loss when it occurs and creating havoc
>>> with downstream jitterbuffers.
>>>
>>> Is there a way to disable this behaviour?
>>>
>>> Richard
>>>
>>> --
>>> Richard Brady
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>>
>>
>> --
>> Anthony Minessale II
>>
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>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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>
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