[Asterisk-Users] frames/packet

[David Luyens]

Hi, I thought you were using * and was wondering which kind of PC server
you used to compress 120 voice channels.

Yes I have a working * (1xE1 PRI + analog)

David

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Abdul Hakeem
Sent: Wednesday, October 01, 2003 10:20 AM
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] frames/packet


Hi,
I used Cisco 3640 with 2xNM-HDV-2E1 cards.
The default GW router has RTP and TCP/UDP header compressions. There is
also a Linux solution for this. You can run RTP compression on your
asterisk box, and or run UDP/TCP header compression on the default GW
router. Do you have a working * box at the moment ?

Cheers,
Abdul

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of David Luyens
Sent: 29 September 2003 15:32
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] frames/packet


Hi Abdul, can you tell which hardware (CPU, Mem) you used to manage the
compression of 120 calls? Also, which codec did you use?

David

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Abdul Hakeem
Sent: Thursday, September 18, 2003 6:16 PM
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] frames/packet


Hi,
A bit late replying to this.
My comments are below:

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Paul Lambert
Sent: 03 September 2003 17:16
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] frames/packet


"Not yet." implies that it is coming. I know it would help on Internet
connections such as fixed wireless and cable modem where packet rate is
an issue. 20ms translates to 50 packets/sec. I believe cable modem
upstream packet rates cap at 150-200 packets/sec. G729 gets the bit rate
down to 8kbits.
>>You can actually set the bytes to about 200 or more, that should
reduce the packet rates down to about 10/sec

 So based on a bit rate of 256K the theory is that the link could handle
32 calls. But, that would produce packets coming out at a rate of 1600
packets/sec beyond the limitation of most Internet connections including
a T1.
>>we have managed to run 120 simultaneous calls on 1xE1 link which is
about 2.048kbps of bandwidth(slightly bigger that a T1).

The theory, many a times, do not actually hold.
Cheers,
Abdul






Martin Pycko wrote:
> 
> Not yet.
> 
> Asterisk always sends 20 ms of voice data per packet.
> 
> regards
> Martin
> 
> On Wed, 3 Sep 2003, Paul Lambert wrote:
> 
> > Noticed that I can adjust the number if frames/packet on the
> > GrandStream phone. Can * do the same? 
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
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