Mailing List Archive: T1 PRI options

T1 PRI options

Mar 17, 2004, 4:46 PM

Post #1 of 4 (1889 views)

I've just ordered 2 new PRIs to be terminated on a NM-HDV-2T1-48.
The carrier is asking me to fill out an order sheet with several options I'm
unfamiliar with as I'm from the UK, where if I order an E1 with Q.931
signaling that's about it...

I suggested they use the defaults as I'm confident I can configure the
router to work with whatever they deliver, but that won't wash with them, so
what are your suggestions for:

Signaling type - wink or immediate
Outpulsing - DTMF or MF
Framing, B8ZS or AMI / ES or ESF

TIA

Simon

Re: T1 PRI options [ In reply to ]

bdeaver at cisco

Mar 17, 2004, 6:43 PM

Post #2 of 4 (1869 views)

Permalink

The signal and outpulsing type sound like they are trying to set you up with
a RBS (CAS) service like e&m. These have nothing to do with PRI. You might
want to explain to them that you want PRI.

The framing and line coding generally will be ESF/B8ZS.

Bryan

> From: "Simon Hamilton-Wilkes" <simon@jettis.com>
> Date: Wed, 17 Mar 2004 15:46:36 -0800
> To: <cisco-voip@puck.nether.net>
> Subject: [cisco-voip] T1 PRI options
>
> I've just ordered 2 new PRIs to be terminated on a NM-HDV-2T1-48.
> The carrier is asking me to fill out an order sheet with several options I'm
> unfamiliar with as I'm from the UK, where if I order an E1 with Q.931
> signaling that's about it...
>
> I suggested they use the defaults as I'm confident I can configure the
> router to work with whatever they deliver, but that won't wash with them, so
> what are your suggestions for:
>
> Signaling type - wink or immediate
> Outpulsing - DTMF or MF
> Framing, B8ZS or AMI / ES or ESF
>
> TIA
>
> Simon
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip

RE: T1 PRI options [ In reply to ]

simon at jettis

Mar 17, 2004, 8:10 PM

Post #3 of 4 (1869 views)

Permalink

Thank you all for your responses. Consensus was telco sales people are
clueless, BZ8S & ESF are the way to go the other options don't apply anyhow.

Simon

Re: T1 PRI options [ In reply to ]

EKNUDSON at houston

Mar 17, 2004, 9:31 PM

Post #4 of 4 (1897 views)

Permalink

Simon,

Sounds like the telco is trying to sell you a T1-CAS (rather than CCS) circuit. DTMF/MF have no place in ISDN call signaling, though framing b8zs and linecode esf are the most common.

VoIP with Common Channel Signaling (CCS) (explains both):
http://www.cisco.com/en/US/tech/tk652/tk653/technologies_configuration_example09186a00800fa11a.shtml

Cheers,

Eric

----- Original Message -----
From: Simon Hamilton-Wilkes <simon@jettis.com>
Date: Wednesday, March 17, 2004 5:46 pm
Subject: [cisco-voip] T1 PRI options

> I've just ordered 2 new PRIs to be terminated on a NM-HDV-2T1-48.
> The carrier is asking me to fill out an order sheet with several
> options I'm
> unfamiliar with as I'm from the UK, where if I order an E1 with Q.931
> signaling that's about it...
>
> I suggested they use the defaults as I'm confident I can configure the
> router to work with whatever they deliver, but that won't wash
> with them, so
> what are your suggestions for:
>
> Signaling type - wink or immediate
> Outpulsing - DTMF or MF
> Framing, B8ZS or AMI / ES or ESF
>
> TIA
>
> Simon
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>