[Asterisk-Users] * point to point t1 solution?

Thu Jan 26 07:00:26 MST 2006

1000pps TDMoE plus vlan tagging, plus l2tp over 10mbps microwave?

I assume you have not tried this before, correct?

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Sean Cook
> Sent: Thursday, January 26, 2006 6:47 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
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> Ok... lets get into the network setup... what about bridging a vlan
> across your wireless network and sticking both asterisk on the same
> segment?   l2tp... (can a forgo the posting of the google links?)  :)
> 
> 
> 
> Damon Estep wrote:
> > TDMoE would allow a T1 like connection only over the local Ethernet
> segment, since it is not an IP technology it can not be router across ip
> networks.
> >
> > This would be useful to connect 2 asterisk boxes on the same Ethernet
> segment (or with a crossover cable).
> >
> > The advantage would be lower latency than SIP or IAX - the disadvantage
> being a constant ~1000 packet per second Ethernet flow requires to keep
> the channels up.
> >
> > Won't work...
> >
> >
> >
> >
> >>-----Original Message-----
> >>From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> >>bounces at lists.digium.com] On Behalf Of Sean Cook
> >>Sent: Thursday, January 26, 2006 6:36 AM
> >>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >>
> > http://www.voip-info.org/wiki-Asterisk+TDMoE
> >
> > Damon Estep wrote:
> >
> >>That would not be a nailed up t1 - signaling at both ends would be via
> >
> > asterisk.
> >
> >>I was trying to determine if there is a way to configure asterisk to
> >
> > emulate a ptp t1 passively (no signaling) - essentially providing the
> same
> > type of end to end circuit you would get if you ordered a point to point
> > esf/b8zs t1 from the telco.
> >
> >>I know how to set up asterisk to talk to the Nortel (where the Nortel
> >
> > thinks asterisk is a telco trunk) - but that is not my goal here.
> >
> >>I want to replace a T1 TIE TRUNK between to Nortel's using Digium t1
> >
> > interfaces and an IP link between asterisk boxes, but still allow the
> > Nortel to pass signaling directly back and forth.
> >
> >>Still want to take the challenge?
> >
> >
> >
> >
> >>>-----Original Message-----
> >>>From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> >>>bounces at lists.digium.com] On Behalf Of Sean Cook
> >>>Sent: Thursday, January 26, 2006 6:12 AM
> >>>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>>Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >
> >
> >>Damon Estep wrote:
> >
> >
> >>>Jean-Michel,
> >
> >>>I agree with all of your comments, and would be willing to bet $100
> that
> >
> >>NO AMOUNT OF GOOGLING will answer this question definitively.
> >
> >>I would almost be willing to take that bet... find your exact
> >>configuration is probably not going to happen... however finding enough
> >>information to piece it together is pretty straight forward...
> >
> >>http://www.tek-tips.com/viewthread.cfm?qid=1082800&page=10
> >
> >>This link tells you that someone else has connected asterisk to a T1
> >>interface on a Nortel NorthStar.   (first link for asterisk nortel
> >>northstar).
> >
> >>http://www.voip-info.org/wiki-Asterisk+Zaptel+Installation
> >
> >>Whould give you a start as to how to configure the T1 card (zaptel
> >>drivers).
> >
> >>http://www.voip-info.org/wiki/index.php?page=Asterisk+config+zaptel.conf
> >
> >>Would give you a start to configure the zaptel.conf
> >
> >
> >>http://www.voip-info.org/wiki-IAX
> >
> >>Gives you the skinny (no pun intended) on IAX and working with it to set
> >>up the trunk...
> >
> >
> >>So it would be logical to assume that if you can connect to the nortel
> >>and asterisk can talk to asterisk via (iax or sip or anything else) ...
> >>you only need to set up an appropriate dial plan to pass extensions back
> >>and forth.
> >
> >>In /etc/zaptel.conf:
> >>   span=1,1,0,esf,b8zs
> >>   bchan=1-23
> >>   dchan=24
> >
> >>In /etc/asterisk/zapata.conf:
> >>   switchtype=national
> >>   context=from-pbx2
> >>   signalling=pri_cpe
> >>   group=0
> >>   channel => 1-23
> >
> >
> >>[from-iax-trunk]
> >>; yeah i know this wouldn't be recommended...
> >>exten => _X.,1,Dial(ZAP/g0/${EXTEN},20)
> >
> >>[from-pbx2]
> >>; still not recommended...
> >>exten => _X.,1,Dial(IAX/pbx2/${EXTEN},20)
> >
> >
> >>This is not "Uncharted Territory" this is thinking about something as a
> >>sum of its parts not as if "No one else has a solution just like me"
> >
> >
> >
> >>>After reviewing Adrian Carters very informative response regarding
> TDMoE
> >
> >>I am getting closer to what I need to know (now my googles include
> >>"asterisk" AND "TDMoE").
> >
> >
> >>>This is CLEARLY uncharted territory, while I'll bet it has been done
> >
> >>before, no one took the time to document it.
> >
> >>No it isn't... I know plenty of people who have connected legacy systems
> >>to IP.  I am doing it with a Merlin Legend.
> >
> >
> >
> >>>My return to the list if I am successful will be to document the config
> >
> >>on the wiki... fair exchange?
> >
> >
> >>>And, if along the way I find an EXPERT in this area with REAL WORLD
> >
> >>PRODUCTION EXPERIENCE I will gladly pay the fees, but I am not about to
> >>shell out anything to pay some know-it-all to educate themselves and
> >>provide me a half baked solution that has never been put to the real
> >
> > world
> >
> >>test.
> >
> >>If you are LOOKING for REAL WORLD, EXACT RepReSenTAtions  (sorry
> >>couldn't resist) of exactly what you have... you are probably going to
> >>be out of luck.  But consider this:
> >
> >>1.  There is plenty of ducumentation on connecting Legacy Systems to
> >>Asterisk
> >>2.  There is plenty of documentation on connect two asterisk systems to
> >>eachother.
> >
> >
> >
> >
> >
> >>>D
> >
> >
> >
> >
> >
> >>>>Damon Estep a écrit :
> >
> >
> >
> >>>>>Jean-Michel,
> >>>>>
> >>>>>You missed the entire point - the question is IS ASTERISK CAPABLE OF
> >
> >>>>EMULATING A POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE THERE ANY
> >
> >>WEB
> >
> >
> >>>>BASED HINTS I MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?
> >
> >
> >>>>Yes, I think Asterisk can do what you are trying to achieve. No, I
> >
> > don't
> >
> >>>>know how to do it, and no I won't do it for you since I've never been
> >
> > in
> >
> >>>>the situation you're in.
> >
> >>>>As for "web based hints", with some experience I've found that google
> >
> > is
> >
> >>>>as good as asking the mailing list. If you have no success with the
> >>>>mailing list, the wiki (voip-info.org) and google, you can try the irc
> >>>>channel #asterisk on freenode.
> >
> >>>>If that still doesn't work, shelling out a few hundred bucks for a
> >>>>consultant to help you do it - and train you in the process - is the
> >>>>other alternative, and is often a good deal.
> >
> >>>>I've done it a couple of times myself, and it's awesome how far people
> >>>>can get you and how hard they try when you recognize the value of
> their
> >>>>work with some money (as opposed to just asking nicely).
> >
> >>>>Cheers,
> >>>>Jean-Michel.
> >
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