Re: SIP trunking providers

[Mike Hammett <nanog () ics-il net>]

That's why I asked for one with everything local. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

----- Original Message -----

From: "Owen DeLong" <owen () delong com> 
To: "Mike Hammett" <nanog () ics-il net> 
Cc: nanog () nanog org 
Sent: Thursday, July 23, 2015 8:56:47 PM 
Subject: Re: SIP trunking providers 

Nor will the fact that your particular trunking provider is local, so I’m not sure what you seek to accomplish, then. 

Owen 

> On Jul 23, 2015, at 12:24 , Mike Hammett <nanog () ics-il net> wrote: 
>
> I have several Asterisk VMs running in my own facility, but that doesn't change the fact that a particular provider's 
> media gateway that SIP reinvites me to is somewhere non-local. 
>
>
>
>
> ----- 
> Mike Hammett 
> Intelligent Computing Solutions 
> http://www.ics-il.com 
>
> ----- Original Message ----- 
>
> From: "Owen DeLong" <owen () delong com> 
> To: "Mike Hammett" <nanog () ics-il net> 
> Cc: nanog () nanog org 
> Sent: Monday, July 20, 2015 8:04:24 AM 
> Subject: Re: SIP trunking providers 
>
> Why not set up a small Asterisk box in a local datacenter and only trunk out the non-local calls? 
>
> Owen 
>
> > On Jul 20, 2015, at 03:36 , Mike Hammett <nanog () ics-il net> wrote: 
> >
> > I want the gateway in Chicago as well. 
> >
> > I am Chicago based. The end users are Chicago based. Therefore the origination would be coming from a Chicago area 
> > gateway. Half of the calls (inbound would be guaranteed to be local as they'd be coming in through a local tandem 
> > anyway. Most of the termination traffic would again be to local numbers, therefore would again have to be through 
> > local tandems. 
> >
> >
> >
> >
> > ----- 
> > Mike Hammett 
> > Intelligent Computing Solutions 
> > http://www.ics-il.com 
> >
> > ----- Original Message ----- 
> >
> > From: "Nathan Anderson" <nathana () fsr com> 
> > To: "Mike Hammett" <nanog () ics-il net> 
> > Cc: nanog () nanog org 
> > Sent: Monday, July 20, 2015 4:11:37 AM 
> > Subject: RE: SIP trunking providers 
> >
> > Maybe I'm missing something here, but what does it matter if the RTP from your perspective ends in Chicago or not? 
> > If it does end in Chicago, that only means they are proxying the audio before sending it on to the actual media 
> > gateway for that call where it finally drops onto the PSTN. So all that happens is that the audio latency remains 
> > the same (or worse, because of the additional, unnecessary proxy) AND that the actual media gateway remains hidden 
> > from you. You won't be able to actually test and see the latency to the MG, and you will be under the (false) 
> > impression that latency across all calls is equally "good" because you are only measuring RTT to a specific and 
> > common media proxy. By sending the audio directly to an MG closer to the point of exit from IP-land, it is taking a 
> > more direct route to the callee than you are seemingly asking for. 
> >
> > If you're not talking about adding a proxy to the equation, are you expecting to find a provider in Chicago that 
> > immediately goes from IP to PSTN within Chicago, regardless of the actual destination of the call? Circuit-switched 
> > TDM is not a no-latency connection. Physics is involved here. The farther apart the caller is from the callee, the 
> > more latency there will be, regardless of the medium. All other things being equal (similar network path, etc.), I 
> > doubt IP packet switching significantly increases the latency over and above TDM call trunking. But I'm not an 
> > expert, and again, if I'm missing something here, I would love to be proven wrong. 
> >
> > -- 
> > Nathan Anderson 
> > First Step Internet, LLC 
> > nathana () fsr com 
> >
> > ________________________________________ 
> > From: NANOG [nanog-bounces () nanog org] On Behalf Of Mike Hammett [nanog () ics-il net] 
> > Sent: Sunday, July 19, 2015 1:04 PM 
> > Cc: nanog () nanog org 
> > Subject: Re: SIP trunking providers 
> >
> > I too am looking for the Chicago area. Low volume. I'm looking for people whose SIP and RTP hit the end of the road 
> > in Chicago. Not interested in someone whose SIP servers are in LA , but will redirect me to the nearest gateway... 
> > without telling me where said gateway is. 
> >
> >
> >
> >
> > ----- 
> > Mike Hammett 
> > Intelligent Computing Solutions 
> > http://www.ics-il.com 
> >
> > ----- Original Message ----- 
> >
> > From: "Rafael Possamai" <rafael () gav ufsc br> 
> > To: nanog () nanog org 
> > Sent: Friday, June 19, 2015 4:40:48 PM 
> > Subject: SIP trunking providers 
> >
> > Would anyone in the list be able to recommend a SIP trunk provider in the 
> > Chicago area? Not a VoIP expert, so just looking for someone with previous 
> > experience. 
> >
> >
> > Thanks, 
> > Rafael