Re: [Linphone-users] limiting RTP size

[Anthony Ching]

Hi Tracy,

I also want to test the voice quality under different ptime parameter.
Would you advise how to change QoS information, so that I make a longer RTP (ie.. lower bandwidth) ?

rgds,
Anthony

> From: address@hidden
> To: address@hidden
> Date: Wed, 27 Nov 2013 00:41:30 +0000
> Subject: [Linphone-users] limiting RTP size
>
> Hi
>
> I have been running some tests with Linphone running on a wireless laptop as an extension of a NEC Univerge SV8100 PABX. For the tests I've used the G.711 codec.
>
> Linphone is smart in that it changes the packet size based on QoS information, however it appears that the PABX ignores RTP packets of 534bites or longer, ie Ptime=60 or greater.
> Is it possible to limit the Ptime/packet size? I've tried setting the Maximum Transmission Unit to 512 but this was ignored.
>
> Regards,
>
> Mr Tracy Briscoe
> Network Engineer
>
> St Peter's School, Cambridge, Private Bag 884, Cambridge 3450, New Zealand
> P +64 7 827 9899 ext 254 l F +64 7 827 9812
> www.stpeters.school.nz
>
>
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