Noticed that I can adjust the number if frames/packet on the GrandStream phone. Can * do the same?
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@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
"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. 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. 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@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
Unless you use IAX2 trunking that would limit 32 calls to 50 packets/sec. Martin On Wed, 3 Sep 2003, Paul Lambert wrote:> "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. 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. > > > > 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@lists.digium.com > > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > > > > _______________________________________________ > > Asterisk-Users mailing list > > Asterisk-Users@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
That is not just true of IAX. There appears to be substantial amount of RTP traffic, which trunks a variable bundle of calls between the same two points, used by IDD services. The traffic has to be going between the same two points to make that work, though, whichever protocol you use as the transport. Regards, Steve Martin Pycko wrote:>Unless you use IAX2 trunking that would limit 32 calls to 50 packets/sec. > >Martin > >On Wed, 3 Sep 2003, Paul Lambert wrote: > > > >>"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. 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. >> >>
Hi, A bit late replying to this. My comments are below: -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Paul Lambert Sent: 03 September 2003 17:16 To: asterisk-users@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 shouldreduce 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 isabout 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@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users
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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Abdul Hakeem Sent: Thursday, September 18, 2003 6:16 PM To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Paul Lambert Sent: 03 September 2003 17:16 To: asterisk-users@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 shouldreduce 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 isabout 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@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users
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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of David Luyens Sent: 29 September 2003 15:32 To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Abdul Hakeem Sent: Thursday, September 18, 2003 6:16 PM To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Paul Lambert Sent: 03 September 2003 17:16 To: asterisk-users@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 shouldreduce 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 isabout 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@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users
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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Abdul Hakeem Sent: Wednesday, October 01, 2003 10:20 AM To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of David Luyens Sent: 29 September 2003 15:32 To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Abdul Hakeem Sent: Thursday, September 18, 2003 6:16 PM To: asterisk-users@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@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Paul Lambert Sent: 03 September 2003 17:16 To: asterisk-users@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 shouldreduce 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 isabout 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@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users