[Asterisk-Users] Re: * point to point t1 solution? / alternatives

[Damon Estep]

Bill,

The question has been answered; Asterisk is NOT capable of providing a
clear PTP TDM path between two boxes configured with t1 cards and any
type of trunking.

I am aware of my other options, and will move forward with the knowledge
that a solution we have implemented with back to back Cisco routers in
the past is not possible with asterisk.

I do intend to move forward with asterisk in this particular
environment, but I wish to integrate asterisk by placing it between the
telco PRI and the primary Nortel switch, not between the primary switch
and a branch office on a T1 tie trunk.

I will leave the leased PTP t1 in place for now since it cannot be
dropped without significant additional work for a temporary situation.

BTW, I did learn that the RAD IPMux-11 will do exactly what we need, but
cost is about $1500/pair, so the break even on a $300/mo leased line is
5 months, in which time we are not planning to need the T1 anymore. With
that said, it is still about $6k less than the Cisco solution.

Thanks for your support on this.


> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Bill Michaelson
> Sent: Thursday, January 26, 2006 12:29 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Re: * point to point t1 solution? /
alternatives
> 
> I can appreciate the desire to avoid reconfiguring existing hardware,
> but that is part and parcel of what we are discussing: reconfiguring
> hardware.  Without further specification, it has no bearing on how to
> preserve application behavior, which is what we are trying to
accomplish
> with this discussion.
> 
> I don't wish to second-guess your analysis of the business
requirements
> - you are the authority - but your initial post expressed a desire to
> move toward an Asterisk configuration as one of your goals.  Toward
that
> end, development of an appropriate dialing plan ultimately must
happen,
> and I would think if done properly, would not change dialing patterns
or
> extension numbering unless this is what you desired.
> 
> I must agree that fax and modem performance is problematic, but here
> again, this would be an issue anyway when you transition completely to
> Asterisk, as you implied about your long-term plan.  So perhaps now is
> the time to address this matter.
> 
> Are you sure you really want to do this at all?
> 
> >Date: Thu, 26 Jan 2006 08:52:04 -0700
> >From: "Damon Estep" <damon at suburbanbroadband.net>
> >
> >
> what are the application implications of this? In other words, what
> system behavioral changes will your users experience in the various
> scenarios (pure circuit emulation vs. relay via IAX or similar)?
> 
> >circuit emulation will;
> >
> >1. eliminate the need to reconfigure the exisitng hardware.
> >2. improve the chances that fax and analog modem devices will still
work.
> >3. NOT change any dialing patterns or extensons numbering.
> >
> >there are other, but they are less significant
> >
> >
> >>
> >My goal is to run an asterisk box at each end ... with the goal of
> migrating off of the
> >>norstars eventually.
> >
> >
> 
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