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

Thu Jan 26 06:35:46 MST 2006

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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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