Re: estimating VoIP data traffic size from VoIP signaling traffic size ?

2005-10-23 Thread John Todd
Hi, is there any statistics on aggregated VoIP signaling bandwidth and aggregated VoIP data bandwidth? eg. if we monitored there is 2Mbps(average) traffic on VoIP signaling protocol ports ( including SIP, H.323, MGCP), how could we estimate average VoIP data bandwidth? Joe As mentioned in

Re: GSM gateways in the US?!?

2005-07-25 Thread John Todd
At 10:43 PM -0400 on 7/24/05, Robert M. Enger wrote: I've seen cellular service agreements that discuss all more almost all usage originating from a single cell site. Apparently, they discourage using fixed-location cell adapters to jack-in to the cellular network. I suppose one could use

Re: FCC To Require 911 for VoIP

2005-05-02 Thread John Todd
At 12:55 AM +0200 on 4/29/05, Iljitsch van Beijnum wrote: On 29-apr-2005, at 0:17, Owen DeLong wrote: Someone should show them some of the 802.11 based cellular-like SIP phones and ask them how exactly they plan to get good geolocation data for 911 on those and the soft-phone in my laptop. Who

Re: Vonage complains about VoIP-blocking

2005-02-16 Thread John Todd
At 11:07 AM -0500 on 2/15/05, Steven M. Bellovin wrote: http://advancedippipeline.com/60400413 The FCC is investigating -- it's not even clear if it's illegal to do that. --Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb This has been an interesting thread; lots of divergence. I'll

VoIP peering technology review: request for information

2004-10-15 Thread John Todd
I'd like to review any methods by which operators are currently exchanging e.164 telephony route information between VoIP systems (excluding SS7.) In the last ~1 year, I have not heard of any significant changes in the manner in which routes are exchanged; the typical method still seems to

Re: S.2281 Hearing (was: Justice Dept: Wiretaps...)

2004-06-20 Thread John Todd
At 12:30 AM -0400 on 6/20/04, John Curran wrote: At 12:06 AM -0400 6/20/04, Sean Donelan wrote: [snip] It sounds good, if you assume there will always be a PSTN. But its like defining the Internet in terms of connecting to the ARPANET. Correct. It's a workable interim measure to continue

Re: Personal Co-location Registry

2004-03-18 Thread John Todd
At 9:51 AM -0600 on 3/18/04, Kelly Setzer wrote: On Thu, Mar 18, 2004 at 09:07:31AM -0500, Steven M. Bellovin wrote: In message [EMAIL PROTECTED], Paul Vixie writes: I agree, lack of interactive access to a system prior to a functional OS being loaded always seemed like a potential problem

Re: chep snmp temperature sensors

2003-06-24 Thread John Todd
I've searched the archives, and didn't see anything current. I am looking for a small, cheap, simply device, that can measure temp and be polled via SNMP. POE would be a plus. Any pointers? -- Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben -- --Net Access Corporation,

Re: IP Management tool for service providers

2003-02-20 Thread John Todd
I am looking for an IP management which has flexible management capabilities. I need it for managing my customers IP assignments, and keeping stock of my IP pool. Do you have any suggestions? Here's one. I haven't used it in production, but the demo that I was given was pretty slick. Works

Re: VoIP QOS best practices

2003-02-11 Thread John Todd
On Mon, 10 Feb 2003, Aditya wrote: FWIW, I purchased a Cisco ATA-186 and then a 7960 on eBay (after trying out MS Messenger and finding it lacking) and they just work. I also have used the same units to get a PSTN phone number routed over IP using www.iconnecthere.com -- and you can make

Re: Aggregate traffic management

2003-01-28 Thread John Todd
It can be done several ways, but the question is how are you differentiating? This is an incomplete list of methods for differentiating, each of which is supported by one or more vendors or open-source solutions: - destination address - specific prefix matching - prefix length

Re: Standalone Stratum 1 NTP Server

2002-08-27 Thread John Todd
, compared to other stratum-1 sources I have seen) are still outside the put-one-in-every-POP price. JT At 9:48 AM -0700 8/27/02, Mike Lyon wrote: Here is your base pricing from Truetime: NTS-150 $2395 NTS-200 $3595 -Mike On Tue, 27 Aug 2002, John Todd wrote: Happen to know what the base

Re: AS number inconsistencies

2002-07-08 Thread John Todd
More data would be useful to answer this question. I have not done any research to answer these questions myself, but here are some additional points which may further clarify your own search: - Do these Premature ASes announce the same routes before and after they are registered? - Do