nanog mailing list archives
Re: Clearwire May Block VoIP Competitors
From: Jared Mauch <jared () puck nether net>
Date: Thu, 31 Mar 2005 10:49:51 -0500
On Wed, Mar 30, 2005 at 08:19:40PM -0700, John Osmon wrote:
On Wed, Mar 30, 2005 at 07:05:44PM -0500, Jared Mauch wrote: [...]I think one of the major problems is that very few people know how to, or are capable of sending larger g711 frames (at increased delay, but more data per packet) because they can't set these more granular settings on their systems.. this means you have a lot higher pps rates which I think is the problem with the radio gear, it's just not designed for high pps rates..So, how are the WISP folk dealing with VOIP traffic as it becomes a larger piece of their customer's traffic? Does anyone have a way to force a given VOIP endpoint to use larger data frames? Or are
2610(config-dial-peer)#codec g711ulaw ? bytes Specify number of voice data bytes per frame <cr> 2610(config-dial-peer)#codec g729r8 bytes ? Each codec sample produces 10 bytes of voice payload. Valid sizes are: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240. My Hitachi WIP-5000 also lets me set this locally on the handset but it uses the delay between packets instead of size.. The Cisco ata-186 can set this as well: # ----------------------------------------------------------------------------- # Parameter: NumTxFrames # Access Code: 35 # Value Type: Integer (1 - 6) # # Description: Transmit frames per packet. # # The frame size for each G.711 and G.729 data packet is 10 ms. # The frame size for each G.723 data packet is 30 ms. # # Examples: To obtain 60 ms of G.723 audio, set the value to 2 (=60/30). # To obtain 120 ms of G.723 audio, set the value to 4 (=120/30). # To obtain 20 ms of G.711 audio, set the value to 2 (=20/10). # # Note: Cisco recommends using the default value of 2. NumTxFrames:2 -- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
Current thread:
- Re: Clearwire May Block VoIP Competitors, (continued)
- Re: Clearwire May Block VoIP Competitors Paul G (Mar 26)
- Re: Clearwire May Block VoIP Competitors Robert Bonomi (Mar 26)
- Re: Clearwire May Block VoIP Competitors Chip Mefford (Mar 28)
- RE: Clearwire May Block VoIP Competitors Hannigan, Martin (Mar 26)
- Re: Clearwire May Block VoIP Competitors Robert Bonomi (Mar 28)
- RE: Clearwire May Block VoIP Competitors Howard, W. Lee (Mar 30)
- Re: Clearwire May Block VoIP Competitors Paul Vixie (Mar 30)
- Re: Clearwire May Block VoIP Competitors Stephen J. Wilcox (Mar 30)
- Re: Clearwire May Block VoIP Competitors Jared Mauch (Mar 30)
- Re: Clearwire May Block VoIP Competitors John Osmon (Mar 30)
- Re: Clearwire May Block VoIP Competitors Jared Mauch (Mar 31)
- Re: Clearwire May Block VoIP Competitors Paul Vixie (Mar 30)
- RE: Clearwire May Block VoIP Competitors Christopher L. Morrow (Mar 30)
- Re: Clearwire May Block VoIP Competitors Stephen Sprunk (Mar 31)
- potpourri (Re: Clearwire May Block VoIP Competitors ) Paul Vixie (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Mikael Abrahamsson (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Joe Abley (Mar 31)