[VoIP] VoIP gateway

[Greg Blakely]

Agreed.  I've found the QoS tagging on routers going across telco
transport to be much more of an issue than mixing voice and data traffic
on the same physical ethernet segment.   And it is the VOICE that needs
precedence over the data, not the other way around.

> -----Original Message-----
> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] 
> On Behalf Of Mark Rudholm
> Sent: Wednesday, September 26, 2007 3:44 PM
> To: jnovack at stromberg-carlson.org; Voice Over IP Tandem for 
> Analog Switches
> Subject: Re: [VoIP] VoIP gateway
> 
> I haven't found that to be necessary.
> 
> I work in a large office that beats the hell out of its 
> Ethernet (it's a big Internet company whose brand is very 
> familiar to all of you) and our IP phones are on the same 
> Ethernet as our other desktop computing devices (but on a 
> different 802.1q VLAN) and I've never observed any contention.
> 
> Each desk has two interchangeable drops.  So you can plug 
> computers into the pass-through on the phone or the other 
> drop (or forgo a phone entirely and use both ports for 
> computers).  This isn't so that people don't have to use the 
> pass-through, it's because most of us have more than one computer.
> 
> John Novack wrote:
> > Best solution is to not even share the Cat5? wiring.
> > two drops to each location. Completely separate networks.
> > Many SIP phones don't even have a 100 Mbit pass through.
> > This, of course, assumes the option exists to control all aspects.
> > Failing that, managed switches where one can control traffic 
> > priorities through QoS.
> > Wiring is cheap, compared to managed switches Opinions may vary.
> > 
> > John Novack
> > 
> > Lee Spenadel wrote:
> >> Incoming traffic will be via existing Centrex lines.
> >>
> >> -----Original Message-----
> >> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On 
> >> Behalf Of John Novack
> >> Sent: Wednesday, September 26, 2007 10:10 AM
> >> To: Voice Over IP Tandem for Analog Switches
> >> Subject: Re: [VoIP] VoIP gateway
> >>
> >>
> >>
> >> Lee Spenadel wrote:
> >>   
> >>> I've got a question on VoIP telephone systems.  A project 
> that I'm 
> >>> helping
> >>>     
> >> out with may have a commercially available VoIP system 
> installed.  I 
> >> don't want the telephony traffic to interfere with LAN traffic and 
> >> may look to have all VoIP devices installed in a separate 
> network hub.
> >> Good idea, but you probably want a switch rather than a hub.
> >> Even an unmanaged switch will perform better than a hub.
> >> Can you still buy hubs?
> >>   
> >>> I'm thinking that the LAN IP network and VoIP networks will be 
> >>> addressed
> >>>     
> >> differently.
> >>   
> >>> Based on this premise, my questions:
> >>>
> >>>  
> >>>
> >>> .         Is there a router/gateway to route traffic 
> between the two IP
> >>> networks?
> >>>   
> >>>     
> >> Will incoming voice traffic be VOIP?
> >> Or will the provider(s) break out a T1 to analog voice and data.
> >> Providers often do this for you in their interface.
> >>
> >> As usual, more questions than answers.
> >>
> >> John Novack
> >>
> >>   
> > 
> 
> 
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