[cisco-voip] T1 PRI options

[EKNUDSON at houston.rr.com]

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 at 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
> 
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