[asterisk-users] Real T1 trunk group...

[Louis Carreiro]

Dale,

That's funny! That is almost exactly what I'm trying to do. Thanks for
the quick response! I'm on the way into the office now and I'll give
the configuration a shot. I hope the config really helps. Maybe with
our two migrations happening at the same time we maybe able to help
each other out.

I'll reply back within the hour!

Louis

Sent from my iPhone

On Jan 16, 2012, at 6:59 AM, Dale Noll <dnoll at wi.rr.com> wrote:

>
>
> On 01/16/2012 04:48 AM, Louis Carreiro wrote:
>> I've been banging my head against the wall for a while (almost 18 hours today alone) with this one... I migrated our incomming T1's from the Option 11 to our Asterisk box this morning. We have 1 local T1 and 2 long distance T1's. The local T1 went over with out a hitch. The problem is with my 2 long distance T1's. The switch on the other end is a DMS250 I'm told so I set Asterisk to DMS100 and got the timing, framing, etc all set. Well, the D channels came up so thats good. I started getting dropped calls every once in a while. I did a debug on the spans and saw the following:
>
> Sounds similar to what I am doing. Migrating from a Nortel Option 61 to Asterisk.  I have everything set, and am just waiting for an appropriate window to move the 4 T-1s (2 trunk groups). All PRIs are national though, not DMS100.
>> I tried configuring a trunkgroup and set the primary dch to 24 and the bdch to 72 and then then spanmap'ed span 2 and 3 into group 1 (e.g. 2,1,0 and 3,1,1) but I don't see anything when I do a "dahdi show channels" or a "pri show spans" or a "pri show channels", not even the channels not in the group. If I delete the trunkgroup, all three commands return all the channels.
>> I'm just curious if I'm going down the right path with trunkgroups for this or if there is something else to take care of the DS1 Identifier issue.
>>
> Here are the relevant portions of my configs, I based them on a working model for PRIs connecting the Asterisk to the Option 61 as TIE trunks.  This config has two dual port cards, with span 1 and 3 being a group and 2 and 4 being a different group. I hope this helps. (Or perhaps identifies something I have wrong that may not have been found yet ;-)
>
> Dale
>
> ###################################
> /etc/dahdi/system.conf
> ###################################
>
> # Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" B8ZS/ESF RED
> span=1,1,0,esf,b8zs
> # termtype: unknown
> bchan=1-23
> dchan=24
> echocanceller=hwec,1-23
>
> # Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2" B8ZS/ESF RED
> span=2,2,0,esf,b8zs
> # termtype: unknown
> bchan=25-47
> dchan=48
> echocanceller=hwec,25-47
>
> # Span 3: TE2/1/1 "T2XXP (PCI) Card 1 Span 1" B8ZS/ESF RED
> span=3,3,0,esf,b8zs
> # termtype: unknown
> bchan=49-71
> dchan=72
> echocanceller=hwec,49-71
>
> # Span 4: TE2/1/2 "T2XXP (PCI) Card 1 Span 2" (MASTER) B8ZS/ESF RED
> span=4,4,0,esf,b8zs
> # termtype: unknown
> bchan=73-95
> dchan=96
> echocanceller=hwec,73-95
>
> ##############################
> /etc/asterisk/chan_dahdi.conf
> ##############################
>
> [trunkgroups]
> trunkgroup => 1,24,72
> trunkgroup => 2,48,96
> spanmap => 1,1,0
> spanmap => 3,1,1
> spanmap => 2,2,0
> spanmap => 4,2,1
>
> [channels]
>
> ....
> ; Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" B8ZS/ESF RED
> ; General Trunking
> group=1
> context=from-pstn
> switchtype = national
> signalling = pri_cpe
> channel => 1-23
>
> ; Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2" B8ZS/ESF
> ; IVR Trunking
> group=2
> context=from-pstn
> switchtype = national
> signalling = pri_cpe
> channel => 25-47
>
> ; Span 3: TE2/1/1 "T2XXP (PCI) Card 1 Span 1" B8ZS/ESF
> ; General Trunking
> group=1
> context=from-pstn
> switchtype = national
> signalling = pri_cpe
> channel => 49-71
>
> ; Span 4: TE2/1/2 "T2XXP (PCI) Card 1 Span 2" (MASTER) B8ZS/ESF RED
> ; IVR Trunking
> group=2
> context=from-pstn
> switchtype = national
> signalling = pri_cpe
> channel => 73-95
>
>
>
>
>
> --
> "The truth speaks for itself. I'm just the messenger."
>     Lyta Alexander - Babylon 5
>
>
> --
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