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

Thu Jan 26 06:47:05 MST 2006

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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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